Nickel

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Nickel,  28Ni
A pittit an lumpy piece o nickel, wi the tap surface cut flat
General properties
Appearance lustrous, metallic, an siller wi a gowd tinge
Staundart atomic wecht (Ar, staundart) 58.6934(4)
Nickel in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
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Ni

Pd
cobaltnickelcopper
Atomic nummer (Z) 28
Group group 10
Period period 4
Element category   transition metal
Block d-block
Electron confeeguration [Ar] 4s2 3d8 or [Ar] 4s1 3d9 (see text)
Electrons per shell
2, 8, 16, 2 or 2, 8, 17, 1
Pheesical properties
Phase (at STP) solit
Meltin pynt 1728 K ​(1455 °C, ​2651 °F)
Bylin pynt 3186 K ​(2913 °C, ​5275 °F)
Density (near r.t.) 8.908 g/cm3
when liquid (at m.p.) 7.81 g/cm3
Heat o fusion 17.48 kJ/mol
Heat o vapourisation 377.5 kJ/mol
Molar heat capacity 26.07 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1783 1950 2154 2410 2741 3184
Atomic properties
Oxidation states 4[1], 3, 2, 1[2], -1 ​mildly basic oxide
Electronegativity Pauling scale: 1.91
Ionisation energies
Atomic radius empirical: 124 pm
Covalent radius 124±4 pm
Van der Waals radius 163 pm
Color lines in a spectral range
Miscellanea
Creestal structurface-centred cubic (fcc)
Face-centered cubic creestal structur for nickel
Speed o soond 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 orderin ferromagnetic
Young's modulus 200 GPa
Shear modulus 76 GPa
Bouk modulus 180 GPa
Poisson ratio 0.31
Mohs haurdness 4.0
Vickers haurdness 638 MPa
Brinell haurdness 700 MPa
CAS Nummer 7440-02-0
History
Diskivery Axel Fredrik Cronstedt (1751)
First isolation Axel Fredrik Cronstedt (1751)
Main isotopes o nickel
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
58Ni 68.077% >7×1020 y (β+β+) 58Fe
59Ni trace 7.6×104 y ε 59Co
60Ni 26.223% stable
61Ni 1.14% stable
62Ni 3.634% stable
63Ni syn 100.1 y β 63Cu
64Ni 0.926% stable
Decay modes in parentheses are predictit, but hae nae yet been observed
| references | in Wikidata

Nickel is a chemical element wi the chemical seembol Ni an atomic nummer 28. It is a sillery-white lustrous metal wi a slicht golden tinge. Nickel belangs tae the transeetion metals an is haird an ductile.

References[eedit | eedit soorce]

  1. M. Carnes; et al. (2009). "A Stable Tetraalkyl Complex of Nickel(IV)". Angewandte Chemie International Edition. 48: 3384. doi:10.1002/anie.200804435. 
  2. S. Pfirrmann; et al. (2009). "A Dinuclear Nickel(I) Dinitrogen Complex and its Reduction in Single-Electron Steps". Angewandte Chemie International Edition. 48: 3357. doi:10.1002/anie.200805862.