28
Ni
58.693
Nickel (Ni)
Element 28 · Period 4 · Group 10
transition-metal
solid at room temp
d-block
About Nickel
Corrosion-resistant metal. Used in coins, batteries, stainless steel, and catalysts.
Physical Properties
Atomic Mass
58.693 u
State at 25°C
Solid
Melting Point
1455 °C
Boiling Point
2913 °C
Density
8.908 g/cm³
Magnetism
Ferromagnetic
Atomic Properties
Electron Configuration
[Ar] 3d⁸ 4s²
Electron Shells
2, 8, 16, 2
Electronegativity
1.91
Atomic Radius
149 pm
Ionization Energy
737 kJ/mol
Oxidation States
+2, +3
Discovery & History
Discovered By
Axel Fredrik Cronstedt
Discovery Year
1751
Named By
Axel Fredrik Cronstedt
Name origin: German: Nickel (devil's copper)
Frequently Asked Questions
- Is Nickel a metal, nonmetal, or metalloid?
- Nickel is classified as a transition-metal.
- What state is Nickel in at room temperature?
- Nickel is a solid at standard room temperature (25°C).
- What is the atomic mass of Nickel?
- Nickel has an atomic mass of 58.693 atomic mass units (u).
- Who discovered Nickel?
- Nickel was discovered by Axel Fredrik Cronstedt in 1751.
- Where is Nickel on the periodic table?
- Nickel is element number 28, located in period 4 and group 10.