Ni - Nickel

Coins made from this transition metal were minted in 235 BC in China. In 1751 A. Cronstedt was able to purify the element. Our students explore the electrochemistry of the metal and may grow crystals from its salts

Atomic number - 28 Density g/mL 8 .9

Atomic weight u 58 .7 Melting point K 1726

Bonding radius A 1 .15 Boiling point K 3187

Atomic radius A 1 .62 Heat of vaporization kJ/mol 370 .4

Ionization Potential V 7 .635 Heat of fusion kJ/mol 17 .47

Electronegativity - 1 .91 Specific heat J/gK 0 .44

The oxide is mildly basic.
Crystal are face centered cubic.

Electron config. : [Ar] 3d⁸ 4s²

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

H He

Li Be B C N O F Ne

Na Mg Al Si P S Cl Ar

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr

Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe

Cs Ba La* Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn

Fr Ra Ac** Rf Db Sg Bh Hs Mt 110 111 112 113

Lanthanides* Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Actinides ** Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

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

052
38 msec
EC/ECp,11.660
Co-52/Fe-51
51.975684 053
45 msec
EC,13.260 MeV
Co-53
52.968459 054
140 msec
EC,8.800 MeV
Co-54
53.957906 055
212.1 msec
EC,8.694 MeV
Co-55
54.951336 056
6.077 da
EC,2.136 MeV
Co-56
55.942135 057
35.60 hr
EC,3.264 MeV
Co-57
56.939799 058 68.077%

Stable

57.935347

059
7.6E+4 yr
EC,1.072 MeV
Co-59
58.934351 060 26.223%

Stable

59.930790 061 1.140%

Stable

60.931060 062 3.634%

Stable

61.928348 063
100.1 yr
B-,3.672 MeV
Cu-63
62.929672 064 0.926%

Stable

63.927969 065
2.5172 hr
B-,2.137 MeV
Cu-65
64.930087

066
54.6 hr
B-,10.000 MeV
Cu-66
65.929114 067
21 sec
B-,3.558 MeV
Cu-67
66.931569 068
19 sec
B-,2.060 MeV
Cu-68
67.931844 069
11.4 sec
B-,5.360 MeV
Cu-69
68.935179 070

B-,3.500 MeV
Cu-70
69.936124 071
1.86 sec
B-,6.900 MeV
Cu-71
70.939988 072
2.06 sec
B-,5.200 MeV
Cu-72
71.941277

073
0.90 sec
B-,8.800 MeV
Cu-73
72.946000 074
1.1 sec
B-,7.100 MeV
Cu-74
73.947718 MASS abund.
Halflife
Particle, Energy
Decay Product(s)
Isotopic Mass

Updated by clh on 2/6/98. This is not a publication of Phoenix College.

Atomic number	-	28		Density	g/mL	8	.9
Atomic weight	u	58	.7	Melting point	K	1726
Bonding radius	A	1	.15	Boiling point	K	3187
Atomic radius	A	1	.62	Heat of vaporization	kJ/mol	370	.4
Ionization Potential	V	7	.635	Heat of fusion	kJ/mol	17	.47
Electronegativity	-	1	.91	Specific heat	J/gK	0	.44
The oxide is mildly basic.				Crystal are face centered cubic.
Electron config. : [Ar] 3d⁸ 4s²
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052 38 msec EC/ECp,11.660 Co-52/Fe-51 51.975684	053 45 msec EC,13.260 MeV Co-53 52.968459	054 140 msec EC,8.800 MeV Co-54 53.957906	055 212.1 msec EC,8.694 MeV Co-55 54.951336	056 6.077 da EC,2.136 MeV Co-56 55.942135	057 35.60 hr EC,3.264 MeV Co-57 56.939799	058 68.077% Stable 57.935347
059 7.6E+4 yr EC,1.072 MeV Co-59 58.934351	060 26.223% Stable 59.930790	061 1.140% Stable 60.931060	062 3.634% Stable 61.928348	063 100.1 yr B-,3.672 MeV Cu-63 62.929672	064 0.926% Stable 63.927969	065 2.5172 hr B-,2.137 MeV Cu-65 64.930087
066 54.6 hr B-,10.000 MeV Cu-66 65.929114	067 21 sec B-,3.558 MeV Cu-67 66.931569	068 19 sec B-,2.060 MeV Cu-68 67.931844	069 11.4 sec B-,5.360 MeV Cu-69 68.935179	070 B-,3.500 MeV Cu-70 69.936124	071 1.86 sec B-,6.900 MeV Cu-71 70.939988	072 2.06 sec B-,5.200 MeV Cu-72 71.941277
073 0.90 sec B-,8.800 MeV Cu-73 72.946000	074 1.1 sec B-,7.100 MeV Cu-74 73.947718	MASS abund. Halflife Particle, Energy Decay Product(s) Isotopic Mass