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Its Elemental - The Element Tellurium The Element Tellurium - Known IsotopesMost of the isotope data on this site has been obtained from the National Nuclear Data Center Please visit their site for more information Isotopes With A Known Natural Abundance
Its Elemental - The Element Thallium Rather than seeing the yellow spectral lines produced by tellurium, he observed a bright green line that no one had ever seen before He named the new element that was producing the green line thallium, after the greek word for 'green twig', thallos
Its Elemental - The Element Antimony Antimony has been known since ancient times It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb 2 S 3) and valentinite (Sb 2 O 3) Nicolas Lémery, a French chemist, was the first person to scientifically study antimony and its compounds He published his findings in 1707 Antimony makes up about 0 00002% of the earth's crust Antimony is a brittle metal
Its Elemental - The Element Gold Gold is sometimes found free in nature but it is usually found in conjunction with silver, quartz (SiO 2), calcite (CaCO 3), lead, tellurium, zinc or copper There is roughly 1 milligram of gold dissolved in every ton of seawater, although extracting it currently costs more than the gold is worth