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Germanium

Ge Germanium
32
72.61
4
Symbol
Ge
Atomic Number
32
Atomic Weight
72.61
Element Classification
Discovered By
Clemens Winkler
Discovery Date
1886 (Germany)
Name Origin
Latin: Germania (Germany).
Density (g/cc)
5.323
Melting Point (K)
1210.6
Boiling Point (K)
3103
Appearance
Grayish-white metal
Atomic Radius (pm)
137
Atomic Volume (cc/mol)
13.6
Covalent Radius (pm)
122
Ionic Radius
53 (+4e) 73 (+2e)
Specific Heat
0.322
Fusion Heat (kJ/mol)
36.8
Evaporation Heat (kJ/mol)
328
Thermal Conductivity (@25°C W/m K)
60.2
Debye Temperature (K)
360.00
Pauling Negativity Number
2.01
First Ionizing Energy (kJ/mol)
760.0
Oxidation States
4
Electronic Configuration
[Ar] 3d10 4s2 4p2
Lattice Structure
Diagonal(DIA)
Lattice Constant
5.660
Lattice C/A Ratio
n/a

KEY

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Germanium

Columbia Encyclopedia

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