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- Name : Germanium
- Symbol : Ge
- Atomic # : 32
- Atom weight: 77.59
- Melting P. : 937.4
- Boiling P. : 2830
- Oxidation : +2, +4
- Pronounced : jer-MAY-ni-em
- From : Latin Germania, "Germany"
- Identified : Predicted by Mendeleyev in 1871
- Appearance : Grayish-white metal
- Note : One of the first elements used in the manufacture of
- electronic semiconductor devices
-
- [Properties]
-
- Germanium is a semimetal, or metalloid. In other words, it is not a metal
- such as aluminum, tin or lead; but neither is it a nonmetal such as
- phosphorus and sulfur. Like a few other elements in its general
- neightborhood on the periodic table of elements, germanium is like a metal
- in some respects, but like a nonmetal in others.
- Pure germanium is usually described as a crystal that closely resembles
- silicon - the world's most important semimetal. It even combines with
- oxygen to produce germanium dioxide and the analogue of silicon dioxide
- (which is ordinary beach sand).
- Germanium is a good semiconductor when combined with tiny amounts of
- phosphorus (P), arsenic (As), gallium (Ga), and antimony (Sb). Notice that
- these elements are all in the same general vicinity as germanium on the
- periodic table.
-