Atomic number: 28
Atomic weight: 58.6934 (2)
Minerals containing nickel were of value for colouring glass green. The mineral used for colouring glass was called kupfernickel (false copper). Nickel was discovered by Baron Axel Frederik Cronstedt in 1751 in a mineral called niccolite. Apparently, he had expected to extract copper from this mineral but got none at all, obtaining instead a white metal that he called nickel after the mineral from which it was extracted.
Axel Fredrik Cronstedt
Origin of name:
From the German word "kupfernickel" meaning Devil's copper or St Nicholas's (OLd Nick's) copper
NiF2: nickel (II) fluoride
NiCl2.6H2O: nickel (II) chloride 6-water
NiCl2: nickel (II) chloride
NiBr2: nickel (II) bromide
NiI2: nickel (II) iodide
NiO: nickel (II) oxide
Ni2O3: nickel (III) oxide
NiS: nickel (II) sulphide
NiS2: nickel disulphide
Ni3S2: nickel sulphide
NiSe: nickel (II) selenide
Ground state electron configuration: [Ar].3d8.4s2
Shell structure: 18.104.22.168
Term symbol: 3F4
Melting point [/K]: 1728 [or 1455 ÃÂ°C (2651 ÃÂ°F)]
Boiling point [/K]: 3186 [or 2913 ÃÂ°C (5275 ÃÂ°F)] (liquid range: 1458 K)
Density of solid [/kg m-3]: 8908
Year Scientist(s) Discovery
"by convention bitter, by convention sweet, but in reality atoms and void"
1704 Isaac Newton
Proposed a mechanical universe with small solid masses in motion.
1803 John Dalton
Proposed an "atomic theory" with spherical solid atoms based upon measurable properties of mass.
1832 Michael Faraday
Studied the effect of electricity on solutions, coined term "electrolysis" as a splitting of molecules with electricity, developed laws of electrolysis. Faraday himself was not a proponent of atomism.
1859 J. Plucker Built one of the first gas discharge tubes ("cathode ray tube").
1869 Dmitri Mendeleev
Arranged elements into 7 groups...