Template:Infobox germanium

Germanium,  ₃₂Ge

Template:Infobox element/symbol-to-top-image-caption
General properties
Pronunciation	Template:Infobox element/pronunciation
Appearance	grayish-white
Standard atomic weight (Ar, standard)	Template:Infobox element/standard atomic weight
Mass number	Template:Infobox element/symbol-to-most-stable-isotope (most stable isotope)
Germanium in the periodic table
Template:Infobox element/periodic table
Atomic number (Z)	32
Group	Template:Infobox element/group
Period	period 4
Block	p-block
Element category	Template:Infobox element/category format
Electron configuration	[Ar] 3d10 4s2 4p2
Electrons per shell	2, 8, 18, 4
Physical properties
Phase at STP	solid
Melting point	1211.40 K ​(938.25 °C, ​1720.85 °F)
Boiling point	3106 K ​(2833 °C, ​5131 °F)
Density (near r.t.)	5.323 g/cm3
when liquid (at m.p.)	5.60 g/cm3
Heat of fusion	36.94 kJ/mol
[[Enthalpy of vaporization|Heat of Template:Engvar]]	334 kJ/mol
Molar heat capacity	23.222 J/(mol·K)
[[Vapor pressure|Template:Engvar pressure]] Template:Infobox element/vapor pressure table
Atomic properties
Oxidation states	Template:Infobox element/symbol-to-oxidation-state
Electronegativity	Pauling scale: 2.01
[[Ionization energy|Template:Engvar energies]]	1st: 762 kJ/mol 2nd: 1537.5 kJ/mol 3rd: 3302.1 kJ/mol
Atomic radius	empirical: 122 pm
Covalent radius	122 pm
Van der Waals radius	211 pm
Template:Infobox element/spectral lines
Other properties
Crystal structure	​Template:Infobox element/crystal structure Template:Infobox element/crystal structure
Speed of sound thin rod	5400 m/s (at 20 °C)
Thermal expansion	6.0 µm/(m·K)
Thermal conductivity	60.2 W/(m·K)
Electrical resistivity	1 Ω·m (at 20 °C)
Band gap	0.67 eV (at 300 K)
Magnetic ordering	diamagnetic
Magnetic susceptibility	−76.84·10−6 cm3/mol
Young's modulus	103 GPa
Shear modulus	41 GPa
Bulk modulus	75 GPa
Poisson ratio	0.26
Mohs hardness	6.0
CAS Number	7440-56-4
History
Naming	after Germany, homeland of the discoverer
Prediction	Dmitri Mendeleev (1871)
Discovery	Clemens Winkler (1886)
Main isotopes of germanium
Template:Infobox element/isotopes table