Ge | Z = 32 | ◊ ◊ ◊ ◊ ◊ |
Germanium | |
From the Latin "Germania", meaning "Germany" | ||||
(AM) Atomic Mass | 72.61 amu | ♦ | Oxidation States | +2, +4, -4 |
(BP) Boiling Point | 2830  °C | ♦ | (MP) Melting Point | 937.4 °C |
(ρ) Density | 5.36 g/cm3 | ♦ | Crystal Structure | Diamond |
( χ ) Electronegativity | 1.8 | ♦ | (AR) Atomic Radius | 1.22  Å |
Physical State | Solid | ♦ | (C) Heat Capacity | 0.32 J/g °C |
Electronic-Config | [Ar]  3d10  4s2  4p2  | ♦ | (I1) First Ionization E | 762.14 kJ/mol |
(ΔHvap) Heat of Vaporization | 334 kJ/mol | ♦ | (ΔHfus) Heat of Fusion | 36.94 kJ/mol |
Year of Discovery | 1886 | ♦ | Location of Discovery | Germany |
(E°) Standard Potential | Ge4+⇔ Ge (0.120 V) | |||
Stable isotopes |  70Ge,  72Ge,  73Ge,  74Ge | |||
Discovered/Synthesized by | Clemens Winkler | |||
Natural Source | Isolated as a byproduct of zinc ore processing | |||
Common Uses | Semiconductors, transistors, rectifiers, diodes, photocells, lenses, infrared windows | |||
Other Info | Used widely in semiconductors Was predicted before discovered |
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