Element 30
Zinc (Zn)
Zinc (Zn) is element 30 of the periodic table, a transition metal in period 4, group 12 (d-block) with an atomic mass of 65.38 and is a solid at standard conditions.
At a glance
- Atomic number
- 30
- Symbol
- Zn
- Atomic mass
- 65.38 u
- Category
- Transition metals
- Period
- 4
- Group
- 12
- Block
- d-block
- Phase at STP
- solid
Electron structure
- Electron configuration
- 1s2 2s2 2p6 3s2 3p6 3d10 4s2
- Shorthand configuration
- [Ar] 3d10 4s2
- Electrons per shell
- 2, 8, 18, 2
- Oxidation states
- -2, +1, +2
Physical properties
- Melting point
- 692.68 K (419.53 °C)
- Boiling point
- 1,180 K (906.85 °C)
- Density
- 7.134 g/cm³
- Phase
- solid
Atomic properties
- Electronegativity (Pauling)
- 1.65
- Atomic radius
- 142 pm
- Covalent radius
- 122 pm
- Van der Waals radius
- 139 pm
- First ionization energy
- 906 kJ/mol
- Electron affinity
- 0 kJ/mol
Notable isotopes
| Isotope | Mass | Abundance | Stability |
|---|---|---|---|
| Zn-64 | 63.92915 | 48.63% | Stable |
Common uses
- Galvanizing steel
- Batteries
- Alloys
- Sunscreen
Discovery
- Year
- 1746
- Discovered by
- Andreas Sigismund Marggraf
- Country
- Germany
Frequently asked questions
- Is zinc a metal?
- Yes. Zinc is a metal, classified as a transition metal on the periodic table.
- How many protons does zinc have?
- Zinc has 30 protons. Its atomic number is 30, which is also the number of electrons in a neutral atom of zinc.
- What group and period is zinc in?
- Zinc is in group 12 and period 4 of the periodic table, in the d-block.
- What is the atomic mass of zinc?
- The atomic mass of zinc is 65.38 u (unified atomic mass units).
Keep exploring
Zinc's row is on the printable element property sheet, and its tile is on the periodic table wall chart - the same numbers as above, laid out for A4 or A3 paper.