About   |   More   |   Search
ChemLin Logo

Nickel

Chemical, physical and material properties and data of the chemical element Nickel.


Contents


Nickel

 

General Information about Nickel

Regular nameNickelChemical symbolNiOther namesHistorical namesName meaning, originDiscovery (year)OccurencePosition in the PSEGroup membership

 

Atomar Properties of Nickel

Atomic number Z28 = number of protonsStandard Atomic Weight58.6934 (4)

 

Electron configuration of Nickel

1s2s2p3s3p3d4s4p4d4f5s5p5d5f6s6p6d6f7s7p
2262682

Shorthand electron configuration of Nickel: [Ar] 3d8 4s2 .

 

Ionization Energies of Nickel

The following table lists the ionization energies IE (ionization potentials); the IE is the energy required in electron volt (eV) per atom to separate a given electron from an Nickel atom.

IE1IE2IE3IE4IE5IE6IE7IE8
7.639818.1688435.1954.976.06108133162

 

Isotopic Data of Nickel

An overview of the nuclides as well as the isotopic data and properties are listed on the following page: Nickel isotopes.

 

Chemistry of Nickel

 

Oxidation states+2Electronegativity1.8 (Pauling original)
1.91 (Pauling)
1.88 (Allen)
3.8584 eV (Gosh Gupta)
4.40 eV (Pearson)
Electron affinity1.157 16(12) eV
111.65(2) kJ mol-1

 

Standard Electrode Potential

E0 (V)SymbolNoxName Ox.
Name Red.
Ox.
Red.
e-
-0.490Ni+ IV
+ II
Nickel(IV) oxide
Nickel(II) hydroxide
NiO2 + 2 H2O
⇄ Ni(OH)2 + 2 OH-
+ 2 e-
-0.257Ni+ II
0
Nickel(II) cation
Nickel
Ni2+
⇄ Ni (s)
+ 2 e-
1.678Ni+ IV
+ II
Nickel dioxide
Nickel(II) cation
NiO2 (s) + 4 H+
⇄ Ni2+ + 2 H2O
+ 2 e-

 

Material and Physical Properties

Melting point1455 °CEnthalpy of fusion (molar)17.48 kJ mol-1Boiling point2913 °CEnthalpy of vaporization371.8 kJ mol-1Density8.908 g cm-3 (20°C)

 

External Data, Identifiers

CAS registry number7440-02-0InChI =1S/NiInChIKeyPXHVJJICTQNCMI-UHFFFAOYSA-NPubChem ID935

 


More Chemistry

isotopes

Social Media

Facebook

LinkedIn

Twitter


Last update: 2022-12-12


© 1996 - 2024 ChemLin