Silver
Silver, element #47, has an atomic mass of 107.87 amu, a density of 10.50 g.cm cubed,
electron levels of 2-8-18-18-1, and a valence of +1. It is a member of group 1B, along with
copper and gold. Silver has been known since ancient times. Ag melts at 961.93 degrees C and boils at
2162.85 degrees C. Silver is the best conductor of heat and electricity of all elements. It is also the
most lustrous metal, mainly used in silverware, jewelry, photographic development, dental fillings, and
small batteries. Silver dust and/or fumes can cause staining of the eyes, mouth, throat, internal organs, and
skin. Silver is a brilliant, soft, white metal, and is very valuable.
June 18, 1997
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