Nickel

Nickel, ₂₈Ni

Nickel
Ìhànsójú	lustrous, metallic, and silvery with a gold tinge
Ìwúwo átọ̀mù Ar, std(Ni)	58.6934(4)[1]
Nickel ní orí tábìlì àyè
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Nọ́mbà átọ̀mù (Z)	28
Ẹgbẹ́	group 10
Àyè	àyè 4
Àdìpọ̀	Àdìpọ̀-d
Ẹ̀ka ẹ́límẹ́ntì	Transition metal
Ìtò ẹ̀lẹ́ktrọ́nù	[Ar] 3d8 4s2 or [Ar] 3d9 4s1
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 17, 1
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1728 K ​(1453 °C, ​2651 °F)
Ígbà ìhó	3186 K ​(2732 °C, ​5275 °F)
Kíki (near r.t.)	8.908 g/cm3
when liquid (at m.p.)	7.81 g/cm3
Heat of fusion	17.48 kJ/mol
Heat of	377.5 kJ/mol
Molar heat capacity	26.07 J/(mol·K)
pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1783 1950 2154 2410 2741 3184
Atomic properties
Oxidation states	−2, −1, 0, +1,[2] +2, +3, +4[3] Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.91
energies	(more)
Atomic radius	empirical: 124 pm
Covalent radius	124±4 pm
Van der Waals radius	163 pm
Color lines in a spectral range Spectral lines of nickel
Other properties
Natural occurrence	primordial
Crystal structure	​(fcc)
Speed of sound thin rod	4900 m/s (at r.t.)
Thermal expansion	13.4 µm/(m·K) (at 25 °C)
Thermal conductivity	90.9 W/(m·K)
Electrical resistivity	69.3 n Ω·m (at 20 °C)
Magnetic ordering	ferromagnetic
Young's modulus	200 GPa
Shear modulus	76 GPa
Bulk modulus	180 GPa
Poisson ratio	0.31
Mohs hardness	4.0
Vickers hardness	638 MPa
Brinell hardness	700 MPa
CAS Number	7440-02-0
Main isotopes of nickel
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct 56Ni syn 6.075 d ε - 56Co γ 0.158, 0.811 - 58Ni 68.077% 58Ni is stable with 30 neutrons 59Ni trace 76000 y ε - 59Co 60Ni 26.233% 60Ni is stable with 32 neutrons 61Ni 1.14% 61Ni is stable with 33 neutrons 62Ni 3.634% 62Ni is stable with 34 neutrons 63Ni syn 100.1 y β− 0.0669 63Cu 64Ni 0.926% 64Ni is stable with 36 neutrons
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