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65Chemical Elements: Carbon and Chlorine
Photo taken from http://blog.michaelgaio.com. Carbon Symbol: C Origin: From the Latin word "carbo", meaning charcoal, a material that is composed primarily of carbon. Discovery: Carbon was discovered...
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64Chemical Elements: Properties and Uses of Zinc and Iodine
Iodine comes from the word "ioeides" or violet. Its symbol is "I" and is a relatively rare element. It was first isolated from seaweed residues in 1811 by Bernard Courtois, a French manufacturer of saltpeter...
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64Chemical Elements: Properties and Uses of Argon and Barium
Argon Its symbol is Ar. Its atomic number is 18. Argon comes from the Greek word “argos” which means “inactive” because it does not easily react with other elements. Argon was discovered in 1894 by the British scientists Baron John William...
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65Chemical Elements: Properties and Uses of Arsenic and Astatine
Arsenic Its symbol is As. Its atomic number is 33. Arsenic comes from the Greek word “arsenikos” which means male or masculine. It has been a known element since the ancient times. It was discovered by...
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68Chemical Elements: Properties and Uses of Silver and Gold
Silver It comes from the Anglo-Saxon word “seolfur” and the symbol Ag, from “argentum”. Silver is a white, lustrous metallic element that conducts heat and electricity better than any other metal. It is a rare and expensive element though...
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