Element 28
Nickel
Transition metals
Nickel (Ni) is in the d-block of the periodic table — group 10, period 4.
Nickel is a chemical element with symbol Ni and atomic number 28.
Key data
- Atomic number
- 28
- Atomic mass
- 58.693 u
- Group / Period
- 10 / 4
- Block
- d-block
- Phase at STP
- Solid
- Density
- 8.908 g/cm³
- Melting point
- 1454.8 °C
- Boiling point
- 2729.8 °C
- Electron configuration
- [Ar] 3d8 4s2
Periodic table block
Nickel is in the d-block (group 10, period 4). Elements land in the d-block when their highest-energy electrons fill a d subshell — these are the transition metals in the middle of the table.
New to this? Periodic table blocks explained: s, p, d, and f
Common uses
- •Stainless steel
- •Coins
- •Rechargeable batteries
Discovery
Year: 1751
Discovered by: Axel Fredrik Cronstedt
Frequently asked questions
What is the atomic number of Nickel?
Nickel has atomic number 28. Its symbol is Ni and its atomic mass is 58.693 u.
What category of element is Nickel?
Nickel is classified as transition metals. It sits in group 10, period 4 of the periodic table.
What block of the periodic table is Nickel in?
Nickel is in the d-block (group 10, period 4). Its highest-energy electrons occupy the d subshell — you can see this in its electron configuration, [Ar] 3d8 4s2.
What is Nickel used for?
Common uses of Nickel include: Stainless steel, Coins, Rechargeable batteries.
When was Nickel discovered?
Nickel was discovered in 1751 by Axel Fredrik Cronstedt.
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