Ge - Germanium

	Atomic number	-	32			Density	g/mL	5	.32
	Atomic weight	u	72	.59		Melting point	K	1210	.4
	Bonding radius	A	1	.22		Boiling point	K	3107
	Atomic radius	A	1	.52		Heat of vaporization	kJ/mol	330	.9
	Ionization Potential	V	7	.899		Heat of fusion	kJ/mol	36	.94
	Electronegativity	-	2	.01		Specific heat	J/gK	0	.32
	The oxide is amphoteric.					Crystal are face centered cubic.
	Electron config. : [Ar] 3d10 4s24p2

Isotopes of Ge: Click mass number for decay process, product for element page.

061 40 msec EC/ECp,13.600 Ga-61/Zn-60 60.963821	062 0.11 sec EC,9.750 MeV Ga-62 61.954653	063 0.095 sec EC,9.780 MeV Ga-63 62.949640	064 63.7 sec EC,4.410 MeV Ga-64 63.941577	065 30.9 sec EC,6.240 MeV Ga-65 64.939441	066 2.26 hr EC,2.100 MeV Ga-66 65.933848	067 18.9 min EC,4.223 MeV Ga-67 66.932738
068 270.8 da EC,2.921 MeV Ga-68 67.928097	069 39.05 hr EC,2.227 MeV Ga-69 68.927971	070 21.23% Stable 69.924249	071 11.43 da EC,2.971 MeV Ga-71 70.924953	072 27.66% Stable 71.922076	073 7.73% Stable 72.923459	074 35.94% Stable 73.921178
075 82.78 min B-,1.176 MeV As-75 74.922859	076 7.44% Stable 75.921402	077 11.30 hr B-,2.702 MeV As-77 76.923548	077a 52.9 sec B-,2.862 MeV As-77 76.923720	078 88.0 min B-,8.200 MeV As-78 77.922852	079 18.98 sec B-,4.150 MeV As-79 78.925399	080 29.5 sec B-,2.670 MeV As-80 79.925444
081 7.6 sec B-,6.230 MeV As-81 80.928824	082 4.60 sec B-,4.700 MeV As-82 81.929554	083 1.85 sec B-,8.900 MeV As-83 82.934513	084 0.947 sec B-/B-n,7.700 As-84/As-83 83.937305	085 0.54 sec B-/B-n,4.600 As-85/As-84 84.942672	MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass