28 Ni Nickel 58,693 u

Nickel

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Période
4
Groupe
10
Bloc
d-bloc
Phase (STP)
Solid

Nickel is a corrosion-resistant transition metal used in coins, stainless steel, and alloys. It is also used in rechargeable batteries and catalysis.

Apparence: Lustrous, metallic, silvery with gold tinge

About Nickel

Corrosion-resistant and tough, nickel is a silvery transition metal with a faint golden tinge, used in coinage, stainless steel, and a wide range of alloys. It has atomic number 28 and an atomic mass of 58.693, a density of 8.91 g/cm³, and a melting point of 1728 K. Its [Ar] 3d8 4s2 configuration gives an electronegativity of 1.91 and a first ionization energy of 737 kJ/mol. Axel Fredrik Cronstedt first isolated the metal in 1751. Beyond structural alloys, nickel serves in rechargeable batteries and as a catalyst. It occupies group 10, period 4.

Propriétés physiques

Masse atomique 58.693 u
Densité 8.908 g/cm³
Point de fusion 1454.8 °C
Point d'ébullition 2729.8 °C
Phase à STP Solid
Rayon atomique 149.0 pm

Propriétés électroniques

Électronégativité 1.91
Énergie d'ionisation 737.1 eV
Affinité électronique 112.0 eV
Électrons de valence 10

Configuration électronique

Configuration [Ar] 3d⁸ 4s²

Electron Shell Configuration

Nickel electron shell configuration Ni 2e⁻ 8e⁻ 16e⁻ 2e⁻

Position in Periodic Table

Nickel position in the periodic table Ni

Découverte

Découvert par: Axel Fredrik Cronstedt
Année: 1751

Tableau périodique

Lanthanides Actinides

Compounds Containing Nickel

Plus de Métal de Transition

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Frequently Asked Questions

What is Nickel?
Nickel (Ni) is a chemical element with atomic number 28. It is a solid at standard temperature and pressure, classified as a métal de transition.
What are the key properties of Nickel?
Nickel has an atomic mass of 58.693 u, density of 8.908 g/cm³, melting point of 1454.8°C, boiling point of 2729.8°C.
What is the electron configuration of Nickel?
The electron configuration of Nickel is [Ar] 3d8 4s2. It is in the d-block of the periodic table.
Who discovered Nickel?
Nickel was discovered by Axel Fredrik Cronstedt in 1751.
What is the electronegativity of Nickel?
Nickel has an electronegativity of 1.91 on the Pauling scale.