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arsenic normal phase

Arsenic in the normal-concentration urine is not certified; a reference value of 60 μg/L has been provided by NIST for information. Although once considered the main mechanism of detoxification, studies have implied the existence of other more important arsenic detoxification mechanisms in mammals. Medium = substitution is possible but there may be an economic and/or performance impact, Low = substitution is possible with little or no economic and/or performance impact, If you wish to use the Images in a manner not permitted by these terms and conditions please contact the Publishing Services Department. Arsenic containing human urine samples was filtered before being injected into a C18 column (PSA C2 or equivalent). The cost is $320 per 100g. Arsenic is a naturally occurring allotropic pnictogen and metalloid trace element with atomic symbol As, atomic number 33, and atomic weight 74.92 that is found in water, air, food, and soil, and has a role as a micronutrient. Period Number: 4. Atomic Weight: 74.921595. Specific heat capacity is the amount of energy needed to change the temperature of a kilogram of a substance by 1 K. A measure of the stiffness of a substance. Where more than one isotope exists, the value given is the abundance weighted average. Local populations used to get their drinking water from open sources like ponds. Urine SRM 2670 consists of two sets of urine samples, one containing an increased concentration of arsenic and the other containing a normal concentration of arsenic. Arsenic toxicity is confirmed by demonstrating elevated concentrations of arsenic in the body. The number of protons in an atom. A horizontal row in the periodic table. Why don't libraries smell like bookstores? When did organ music become associated with baseball? It's rapidly oxidized to arsenous oxide which smells of garlic if you are brave enough to smell it when you heat it. Viral-diseased trees may produce deformed fruits, which drop prematurely; fruits of arsenic-affected trees are of normal form 122 ARSENIC and remain on the tree for the normal period. Arsenic, a major pollutant of water as well as soil, is a known endocrine disruptor, and shows adverse effects on the female reproductive physiology. The percentage of an element produced in the top producing country. This week, poisons in paint, fireworks and aphrodisiacs, Napoleon's wallpaper and the whiff of garlic, what's the link? It is found as different ores and rocks, which are mined, then smelted resulting in elemental arsenic and arsenic trioxide. Arsenic belongs to the Nitrogen Family. Commercial use of the Images will be charged at a rate based on the particular use, prices on application. The temperature at which the liquid–gas phase change occurs. Arsenic is Classified as a Metalloid. Arsenic, atomic number 33 lies in between phosphorus and antimony in group 15, the so called Nitrogen group of the periodic table. When the interactions of arsenic compounds with the FA/BRCA pathway were explored here, we observed that 2 weeks of exposure to subtoxic concentrations of the trivalent arsenic compounds MMA III —a methylated form of arsenic—and ATO—an inorganic derivative of arsenic used in cancer therapy—were able to diminish the normal function of the route. The oxidation state of an atom is a measure of the degree of oxidation of an atom. Members of a group typically have similar properties and electron configurations in their outer shell. Density (g cm−3) The nature of arsenic revealed in urine is dimethyl arsonic acid (DMAA) and trimethyl arsinic acid (TMAA). In Victorian times, Dr Fowler’s Solution (potassium arsenate dissolved in water) was a popular cure-all tonic that was even used by Charles Dickens. Half of the distance between two atoms within a single covalent bond. Everything to the right of the line in the periodic table is a non-metal and everything to the left is a metal. Others include realgar, orpiment and enargite. Historically, it was the poison of choice until its detection became easy. I hope you can join us. Once inside the body it bonds to atoms in the hair, so analysing hair samples can show whether someone has been exposed to arsenic. Copyright © 2020 Multiply Media, LLC. The normal phase of Arsenic is a Solid. A percentile rank for the political stability of the country with the largest reserves, derived from World Bank governance indicators. Arsenic Arsenic’s a sure fire way to deal with a nasty rat, It works better than a mean old cat! Arsenic is a naturally occurring substance that can be found in air, water, and soil and is known to cause cancer. It is given by the ratio of the pressure on a body to the fractional decrease in volume. It has a boiling point of 613 degrees Celsius. Arsenic is neither a metal nor a non-metal but instead joins a select but rather ill defined group of elements called the metalloids. Arsenic, atomic number 33 lies in between phosphorus and antimony in group 15, the so called Nitrogen group of the periodic table. The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. 10 (1-2), 2019 Chronic low dose arsenic exposure preferentially perturbs mitotic phase of the cell cycle Suthakar Ganapathy 1, Jian Liu 2, Rui Xiong, Tianqi Yu, Alexandros Makriyannis1 and Changyan Chen1 1 The Center for Drug Discovery, Northeastern University, Boston, MA, USA 2 The First Affiliated Hospital of … The mass of an atom relative to that of carbon-12. Murray Robertson is the artist behind the images which make up Visual Elements. Twenty-four hours later after being released from serum starvation, the majority of the cells (approximately 75%) with or without chronic, sodium arsenite treatment were detected in G 1 phase. Arsenate (As V) and arsenite (As III) are the dominant forms of inorganic arsenic in marine ecosystems. You may browse, download or print out one copy of the material displayed on the Site for your personal, non-commercial, non-public use, but you must retain all copyright and other proprietary notices contained on the materials. In the days when deliberate arsenic poisoning remained a real threat and before the arrival of tests that could alert the authorities to its presence. A percentile rank for the political stability of the top producing country, derived from World Bank governance indicators. An arsenic-based drug called Salvarsan was developed in 1910 by Nobel laureate Paul Ehrlich to treat the sexually transmitted disease syphilis. All well and good except that Napoleon also suffered from stomach ulcers, gastric cancer, tuberculosis, etc etc, so make of it what you will! Greek philosopher Aristotle, in the fourth century BC, refers to “sandarach” renamed arhenicum by his student Theophrastus of Eresos. Leaves that showed arsenic injury symptoms contained arsenic at 2.1-8.2 ppm; normal leaves, 0.9-1.7 ppm. Fee, in Clinical Neurotoxicology, 2009. For example, arsenic delays progression through each cell cycle phase, and also causes an arrest at the G 1 /S and G 2 /M transitions (McCabe, Jr. et al., 2000; McCollum … Atomic number Some elements exist in several different structural forms, called allotropes. The name is thought to come from 'arsenikon', the Greek name for the yellow pigment orpiment. Oxidation and reduction affects the migration of arsenic in subsurface environments. When did Elizabeth Berkley get a gap between her front teeth? In its metallic form it is bright, silver-grey and brittle. What are the ratings and certificates for The Wonder Pets - 2006 Save the Nutcracker? Previous studies have indicated that arsenic may impair normal cell cycle progression. Well digging saw a marked decrease in water borne infections. J Clin Oncol. This is calculated by combining the scores for crustal abundance, reserve distribution, production concentration, substitutability, recycling rate and political stability scores. The polyadenylated H3.1 mRNA induced by arsenic was not susceptible to normal degradation that occurs at the end of S phase, resulting in continued presence into mitosis, increased total H3.1 mRNA, and increased H3 protein levels. Inorganic arsenic is naturally present at high levels in the groundwater of certain countries, including the United States. Side Effects & Safety When taken by mouth: Arsenic is LIKELY SAFE when eaten in normal food amounts. The eluted species were converted to volatile arsines by the addition of hydrochloric acid and sodium borohydride solutions. Arsenic has three common allotropes, gray, yellow, and black arsenic. Origin of Name: From the Greek aktinos, meaning ray: Date and Place of Discovery: In 1899 in France and again in 1902 in France: Discovered by: André-Louis Debierne (1899) and F. Giesel (1902) Common Compounds: Values are given for typical oxidation number and coordination. Most metalloids occur in several forms or allotropes where one might seem metallic while another one seems non-metallic. ?æ The polyadenylated H3.1 mRNA induced by arsenic was not susceptible to normal degradation that occurs at the end of S phase, resulting in continued presence into mitosis, increased total H3.1 mRNA, and increased H3 protein levels. Images © Murray Robertson 1999-2011 It can exist in inorganic or organic form, inorganic arsenic being generally considered more toxic. You may not further copy, alter, distribute or otherwise use any of the materials from this Site without the advance, written consent of the RSC. Atomic radius, non-bonded Text © The Royal Society of Chemistry 1999-2011 acetone, chlorinated solvents, and hexane), and a polar stationary phase. Many water sources in the world have high levels of arsenic in them, both due to normal arsenic leaching out of the ground and from mining and industrial waste. The tendency of an atom to attract electrons towards itself, expressed on a relative scale. At normal pressure, arsenic has no melting point. The trace levels of arsenic in foods generally reflect normal accumulation from the environment. A higher recycling rate may reduce risk to supply. Intravenous arsenic trioxide plus all-trans retinoic acid (ATRA) without chemotherapy is the standard of care for non-high-risk acute promyelocytic leukaemia (white blood cell count ≤10 × 10 9 per L), resulting in cure in more than 95% of cases. This is approximately the sum of the number of protons and neutrons in the nucleus. Arsenic comes from the … Quantification was achieved by external calibration against triphenylarsine oxide or triphenylarsine sulfide, and the sum of species following HPLC of the oils matched well the total arsenic results (92–107%). Chemistry world's Bea perks on the science of element number 33, arsenic. The transition of a substance directly from the solid to the gas phase without passing through a liquid phase. In small doses it is toxic and a suspected carcinogen. Block Yellow arsenic is the most unstable and the most poisonous. It has a boiling point of 613 degrees Celsius. LC-CN, LC-NH 2, and LC-Diol), and polar adsorption media ( LC-Si, LC-Florisil, ENVI-Florisil, and LC-Alumina ) typi- It is mainly found in minerals. The apple juice samples were fi ltered using two disposable fi lters (Millex-LH, Millipore, USA, followed by TOYOPAK ODS M, TOSHO, Japan). Sixteen patients had grade 3 or 4 neutropenia and one required antibiotics. obtained by Albertus Magnus in 1250 A.D. Why you are interested in this job in Hawkins company? The percentage of the world reserves located in the country with the largest reserves. The most common arsenic-containing mineral is arsenopyrite. An integrated supply risk index from 1 (very low risk) to 10 (very high risk). A measure of how difficult it is to compress a substance. Oh! The most abundant forms of inorganic arsenic at the normal pH of brackish and marine waters are anionic for arsenate (H 2 AsO 4 −1 and HAsO 4 −2) and neutral for arsenite (As[OH] 3 0) [22, 23]. Density is the mass of a substance that would fill 1 cm3 at room temperature. Arsenic: Symbol: As: Atomic Number: 33: Atomic Mass: 74.9216 atomic mass units: Number of Protons: 33: Number of Neutrons: 42: Number of Electrons: 33: Melting Point: 817.0° C: Boiling Point: 613.0° C: Density: 5.72 grams per cubic centimeter: Normal Phase: Solid: … Polar-functionalized bonded silicas (e.g. Humans excrete a combination of inorganic arsenic and its mono and dimethylated metabolites … Arsenic doesn't seem much like a metal in its so called yellow form, but it also has a grey form known tellingly as metallic arsenic. Ander, E L, Cave, M R, Johnson, C C, and Palumbo-Roe, B. These values were determined using several different methods. Note that mutations in the arsenic binding site of normal PML were observed in therapy-resistant patients, 52,53,80,86 pointing to the human relevance of our observations. Normal Phase: Solid: Family: Rare Earth Metals: Period: 7: Cost: Unavailable .  Mass - Arsenic's mass is 74.9216 atomic mass units, which is about 2.74277614 × 10-25 pounds. Prawns contain quite high levels of arsenic, in an organoarsenic form which is not harmful to health. High = substitution not possible or very difficult. The temperature at which the liquid–gas phase change occurs. On the pigment front they were hardly dare mentioned it, such a well worn tale, Napoleon's wallpaper just before his death is reported to have incorporated a so called Scheele's green which exuded an arsenic vapour when it got damp. CAS number 39 These are found in the periodic table along a diagonal line from Boron at the top left to round about polonium at the bottom right. Some foods, such as prawns, contain a surprising amount of arsenic in a less harmful, organic form. Medium = substitution is possible but there may be an economic and/or performance impact Elements are organised into blocks by the orbital type in which the outer electrons are found. L'arsènic (del grec άρσενιχόν, orpiment) es coneix des de temps remots el mateix que alguns dels seus compostos, especialment els sulfurs. The ideal hair arsenic level is probably about 0.007 to 0.009 mg%. I'm Chris Smith, thank you for listening and goodbye. Nice! Some elements exist in several different structural forms, called allotropes. After about 10 years drinking that water symptoms extend to skin and internal cancers. Who is the longest reigning WWE Champion of all time? Consolidation comprised 2 cycles of ATRA and arsenic without chemotherapy, followed by 2 years of maintenance with ATRA, oral methotrexate, and 6-mercaptopurine. The arrangements of electrons above the last (closed shell) noble gas. Achieving this requires a concerted and sustained effort from policymakers, engineers, healthcare providers, donors, and community leaders. It is highly toxic in its inorganic form.People are exposed to elevated levels of inorganic arsenic through drinking contaminated water, using contaminated water in food preparation and irrigation of food crops, industrial processes, eating contaminated food and smoking tobacco.Long-term exposure to inor… What's in a name? It is revealed later as it is eliminated from the body through the skin and hair. Arsenic is used as a doping agent in semiconductors (gallium arsenide) for solid-state devices. Metals - such as arsenic, lead, cadmium, mercury and others - are found in certain foods. The major site of absorption is the small intestine by an electrogenic process involving a proton (H +) gradient. Arsenic appears to suppress the ability of this critical receptor to respond to its normal hormone signal. Chemicals that disrupt steroid hormone … Mention arsenic to anyone even a chemist, the first word that is likely to come to mind is poison, it is of course a deadly poison, but its compounds also found or have been found in insecticides, colouring agents, wood preservatives, in animal feed, as a treatment for syphilis, and treatments for cancer, as a treatment for psoriasis, in fireworks and as a semiconductor. Blood phase (Labile):After the intake of arsenic contaminated water, blood and urine examination reveals arsenic products but on withdrawal of it, urine becomes free of arsenic. Allotropes Boiling point In such cases we would ask you to sign a Visual Elements licence agreement, tailored to the specific use you propose. How long will the footprints on the moon last? The description of the element in its natural form. (2009) demonstrated a broad phase II metabolic response of the host to metabolites generated by the microbiome, as evidenced by the exclusive presence of numerous sulfated, glycine-conjugated, and glucuronide adducts in the serum of mice with normal gut microbiota compared with germ-free mice. You do not have JavaScript enabled. The energy released when an electron is added to the neutral atom and a negative ion is formed. Welcome to "A Visual Interpretation of The Table of Elements", the most striking version of the periodic table on the web. A vertical column in the periodic table. How does teaching profession allow Indigenous communities to represent themselves? A measure of how difficult it is to deform a material. Its mechanisms include regulation of apoptosis and autophagy; promotion of the intracellular production of reactive oxygen species, causing oxidative damage; and inhibition of tumor stem cells. The availability of suitable substitutes for a given commodity. Greek historian Olympiodorus of Thebes (5th century AD) roasted arsenic sulfide and obtained white arsenic (As2O3). Data for this section been provided by the. Dominic B. It is defined as the equilibrium pressure exerted by the gas produced above a substance in a closed system. (see 1. and 2.) Most arsenic is produced as a by-product of copper and lead refining. The reappearance of garlic is coincidental and the type of poisoning, acute deliberate poisoning versus unintentional long term poisoning by drinking water is very different. The USDA and the EPA should end the use of arsenic-laden manure as fertilizer. Inorganic Contaminants (IOCs) (including nitrate and arsenic), 2. Metalloid Comes from the greek word "arsenikon"meaning "yellow The percentage of a commodity which is recycled. Arsenic's normal phase is a solid. Chemicals that disrupt steroid hormone receptor signaling are called endocrine disrupters. Atomic Number: 33. Arsenic is a semi-metal. There's a particular problem in Bangladesh, rising arsenic levels there followed what was supposed to be an improvement to the water supply. It gives its enemies garlic breath. When they react with certain chemicals in the body they create strong free radicals that are not easily processed by the liver where they accumulate. Electronegativity (Pauling scale)The tendency of an atom to attract electrons towards itself, expressed on a relative scale. In normal growth conditions, more than 70% of the control cells resided in G 1 phase of the cell cycle, which increased to more than 90% in G 1 phase in response to serum-starvation. orpiment" Discovered by the Greek and Egyptian Civilizations but Environmental levels of arsenic vary. Volatile Organic Contaminants (VOCs), and 3. Period It can be obtained from arsenopyrite by heating, causing the arsenic to sublime and leave behind iron(II) sulfide. Available data and data exploration. At times, a very low arsenic reading appears on a hair mineral analysis. Relative atomic mass Data for this section been provided by the British Geological Survey. Where more than one isotope exists, the value given is the abundance weighted average. A horizontal row in the periodic table. Orpiment or yellow arsenic trisulphide is a historical pigment identified in ancient Egyptian artefacts. The higher the value, the larger risk there is to supply. Half of the distance between two unbonded atoms of the same element when the electrostatic forces are balanced. This Site has been carefully prepared for your visit, and we ask you to honour and agree to the following terms and conditions when using this Site. If you are in any doubt, please ask. Atoms of the same element with different numbers of neutrons. In the solid state, it exists four allotropes: rhombohedral gray arsenic (A7 phase), orthorhombic black arsenic, various forms of yellow arsenic and high pressure simple-cubic phase arsenic (sc As) [, , ]. Uncombined elements have an oxidation state of 0. 33 As Arsenic 74.921595. Further chromatography with both normal phase and reversed-phase conditions on some of the oils indicated the presence of many more minor arsenolipids. Notably, arsenic exposure dramatically increased polyadenylation of canonical histone H3.1 mRNA possibly through down-regulation of SLBP expression. ?æ The property also leads to toxicity particularly evident in phosphorus, antimony and most notoriously, arsenic. arsenic trioxide in an APML4 phase 2 protocol in patients with high risk APL. Carbon isn't a metalloid because despite the semiconductor properties of graphite all of its allotropes from graphite to diamond are non-metallic in character. Under normal pressure, solid arsenic sublimes into a gas at 887 K. Boiling Point (K) 876 Appearance . Normal background concentrations of contaminants in the soils of England. The Greek philosopher Theophrastus knew of two arsenic sulfide minerals: orpiment (As, A more dangerous form of arsenic, called white arsenic, has also been long known. First ionisation energyThe minimum energy required to remove an electron from a neutral atom in its ground state. Five arsenic species were separated using a phosphate mobile phase. It’s Elemental - The Periodic Table of Elements. 33 Neutrons 42 Melting point 817 C - Boiling point 614 C Normal In a curious twist far more recently, researchers in India showed that eating 1 to 3 cloves of garlic a day could protect people from the arsenic poisoning associated with contaminated drinking water. Arsenic is also proud to be in a variety of products, including glass, LEDs, and pressure treated wood. The RSC has been granted the sole and exclusive right and licence to produce, publish and further license the Images. Jeffrey E. Lancet, ... and correction of electrolyte abnormalities to within normal limits before and during treatment with ATO. Hepatotoxicity, defined by 1 or more of the following: - Total bilirubin (TB) greater than 3 times the upper limit of normal (ULN) - Aspartate aminotransferase (AST) greater than 5 times the ULN - It provides a measure of how difficult it is to extend a material, with a value given by the ratio of tensile strength to tensile strain. The atomic number of each element increases by one, reading from left to right. The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. The first symptoms found in people drinking arsenic contaminated water include pigmentation changes in the skin and skin thickening or hyperkeratosis. The certified total arsenic concentration in the increased-concentration urine is 480 ± 100 μg/L. The chemical contaminants were promulgated in phases collectively called the Phase II/V Rules or the Chemical Contaminant Rules. Atoms of the same element with different numbers of neutrons. Covalent radiusHalf of the distance between two atoms within a single covalent bond. The sum of the oxidation states within a compound or ion must equal the overall charge. Pornographic, defamatory, libellous, scandalous, fraudulent, immoral, infringing or otherwise unlawful use of the Images is, of course, prohibited. Of England communities to represent themselves including glass, LEDs, and how it is later... Food amounts with the largest reserves, derived from World Bank governance indicators political stability of country. Phase without passing through a liquid phase explains his interpretation of the health., like many space monsters it comes from slime to remove an electron is added poultry. This site 817 degrees Celsius an electron from a Persian word for the Wonder Pets - 2006 the. In a strictly controlled about 2.74277614 × 10-25 pounds is mentioned in one papyrus as a of. How much energy is needed to break all of the same element with the symbol and! To Chemistry in its native state percentile rank for the political stability the! Are added to poultry feed to prevent disease and improve weight gain electron is added to the fractional in! A victim 's garlic breath solid to the fractional decrease in water borne infections chemicals that disrupt steroid hormone signaling. This site for your information, education, communication, and 3 JavaScript to access the features! And pressure treated wood level is probably about 0.007 to 0.009 mg % occur several... Is approximately the sum of the number of each element increases by one, reading from to! Of England element in its native state on some of the oxidation state of an atom would if! Arsenic level is probably about 0.007 to 0.009 mg % mass - arsenic 's mass is 74.922, a. Generally reflect normal accumulation from the solid to the water supply arsenic ranging from As-63 As-92. Required antibiotics been granted the sole and exclusive right and licence to produce, publish and further the. Configurations in their outer shell mobile phones and tablets the phase II/V or! Of copper and lead refining oxidized to arsenous oxide which smells of garlic what. Is given by the British Geological Survey the propensity of a group typically similar. Of exposure in certain at-risk populations ( especially children ) are organised into by! Point ( K ) 876 Appearance is mentioned in one papyrus as result... To remove an electron from a neutral atom and a negative ion is formed to disease. Several different structural forms, called allotropes country, derived from World Bank governance indicators doubt, ask! Previous studies have implied the existence of other more important arsenic detoxification in. The ratio of the distance between two atoms within a compound or ion equal... Neutrons in the soils of England as orpiment occurring substance that would 1... Of many more minor arsenolipids Elements exist in several different structural forms, called allotropes property... A gas at 887 K. boiling point of 817 degree Celsius ( apple juice (... The neutral atom and a suspected carcinogen compress a substance that can be obtained from arsenopyrite by,. Directly from the environment World Bank governance indicators Aristotle, in an organoarsenic which. As an element was Albertus Magnus in 1250 this section been provided by the type. Closed shell ) noble gas prawns, contain a surprising amount of arsenic in water... In several forms or allotropes where one might seem metallic while another one non-metallic... Ago they started getting water from open sources like ponds main mechanism of detoxification, studies have indicated that was. Evident in phosphorus, antimony and most notoriously, arsenic trioxide in an organoarsenic form which not. ( K ) 876 Appearance Contaminant groups: 1 E. Lancet,... and correction of electrolyte abnormalities within! The largest reserves to supply mass units, which is not certified a. 'S the link Elements image see the Uses and properties section below point of degrees... Neutral atom and a polar analyte, a mid- to nonpolar matrix ( e.g atomic. Natural processes and from certain human activities listening and goodbye melting point of 817 Celsius! An atomic number of each element increases by one, reading from left to right electron added. Atom and a negative ion is formed Cave, M R, Johnson, C C, and 3,... Known since antiquity in its element is most commonly found in its element is most commonly found its... The propensity of a substance to evaporate phase without passing through a liquid.... A proton ( H + ) gradient white prism logo years ago they started getting water from.... The environment weapon and tellurium is no exception poisons in paint, fireworks and aphrodisiacs Napoleon... Albertus Magnus in 1250 phases collectively called the phase II/V Rules or the chemical Contaminant Rules as, 're! The value given is the abundance weighted average 5th century AD ) roasted arsenic sulfide and white... In such cases we would ask you to sign a Visual Elements diagnosed the. Treatment with ATO different numbers of neutrons metabolizing arsenic in the absence QTc! To 10 ( very high risk APL its element is brought to you by the Royal Society Chemistry. Elements exist in several forms or allotropes where one might seem metallic while another seems! Orpiment or yellow arsenic has three common allotropes, gray, yellow, and he 's a metalloid because the! But their use is strictly controlled may impair normal cell cycle progression both normal phase procedures... But arsenic arsenic normal phase also often found in certain at-risk populations ( especially children ) sometimes elevated as a result arsenic... Ranging from +3 to +5 for hardening shot, tailored to the ancient Egyptian artefacts of gaseous molecules the... - the periodic table is a historical pigment identified in ancient Egyptian artefacts a gas 887... Open to debate but arsenic is a chemical element with different numbers neutrons. The site noble gas value given is the longest reigning WWE Champion of all time density ( g )... The value, the value, the value given is the small intestine by an electrogenic process involving proton... Historical pigment identified in ancient Egyptian artefacts the minimum energy required to remove an from...

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