Ga - Gallium

Gallium was discovered by Lecoq de Boisbaudrain in 1875 in Paris.

Atomic number - 31 Density g/mL 5 .91
Atomic weight u 69 .72 Melting point K 302 .9
Bonding radius A 1 .26 Boiling point K 2478
Atomic radius A 1 .81 Heat of vaporization kJ/mol 258 .7
Ionization Potential V 5 .999 Heat of fusion kJ/mol 5 .59
Electronegativity - 1 .81 Specific heat J/gK 0 .37
The oxide is amphoteric.
Crystal are orthorhombic.

Electron config. : [Ar] 3d10 4s2 4p1


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


061
0.15 sec
EC,9.000 MeV
Zn-61
60.949167
062
116.12 msec
EC,9.170 MeV
Zn-62
61.944175
063
32.4 sec
EC,5.520 MeV
Zn-63
62.939140
064
2.627 min
EC,7.165 MeV
Zn-64
63.936838
065
15.2 min
EC,3.255 MeV
Zn-65
64.932738
066
9.49 hr
EC,5.175 MeV
Zn-66
65.931591
067
3.2612 da
EC,1.000 MeV
Zn-67
66.928204
068
67.629 min
EC,2.921 MeV
Zn-68
67.927983
069 60.108%

Stable

68.925580
070
21.14 min
B-/EC,1.656
Ge-70/Zn-70
69.926027
071 39.892%

Stable

70.924707
072
14.10 hr
B-,4.001 MeV
Ge-72
71.926371
073
4.86 hr
B-,1.593 MeV
Ge-73
72.925169
074
8.12 min
B-,5.370 MeV
Ge-74
73.926945
075
126 sec
B-,3.392 MeV
Ge-75
74.926500
076
32.6 sec
B-,7.010 MeV
Ge-76
75.928931
077
13.2 sec
B-,5.340 MeV
Ge-77
76.929285
078
5.09 sec
B-,8.200 MeV
Ge-78
77.931658
079
2.847 sec
B-/B-n,7.000
Ge-79/Ge-78
78.932914
080
1.697 sec
B-/B-n,10.380
Ge-80/Ge-79
79.936585
081
1.217 sec
B-/B-n,8.320
Ge-81/Ge-80
80.937755
082
0.599 sec
B-/B-n,12.700
Ge-82/Ge-81
81.943209
083
0.31 sec
B-/B-n,11.500
Ge-83/Ge-82
82.946859
084
85 msec
B-/B-n,8.500
Ge-84/Ge-83
83.952334
MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

U