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.

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

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

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