2247.867TiTitanium
Titanium (Ti) — element 22transition metal · group 4, period 4
Titanium is a chemical element with the symbol Ti and atomic number 22. It is a transition metal in group 4, period 4 of the periodic table (the d-block), with a standard atomic mass of 47.867 u. At room temperature (25 °C) titanium is a solid.
💡 Known for: As strong as many steels but much lighter; used in aircraft, medical implants and as white pigment (titanium dioxide).
# Titanium properties
| Symbol | Ti |
|---|---|
| Atomic number | 22 |
| Atomic mass | 47.867 u |
| Category | transition metal |
| Group | 4 |
| Period | 4 |
| Block | d-block |
| Electron configuration | [Ar] 3d² 4s² |
| Full configuration | 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s² |
| Electrons per shell | 2, 8, 10, 2 |
| Protons / electrons | 22 / 22 |
| State at 25 °C | solid |
| Melting point | 1941 K (1667.8 °C, 3034.1 °F) |
| Boiling point | 3560 K (3286.8 °C, 5948.3 °F) |
| Density | 4.54 g/cm³ |
| Electronegativity (Pauling) | 1.54 |
| First ionization energy | 6.828 eV |
| Atomic radius | 176 pm |
| Discovered | 1791 |
# Electron configuration of titanium
The electron configuration of titanium is [Ar] 3d² 4s², written out in full as 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s². Its 22 electrons fill 4 shells as 2, 8, 10, 2, so the outermost shell holds 2 electrons.
# Related elements
ScScandiumprevious elementVVanadiumnext elementZrZirconiumgroup 4HfHafniumgroup 4RfRutherfordiumgroup 4CrChromiumtransition metalMnManganesetransition metalFeIrontransition metalCoCobalttransition metalNiNickeltransition metalCuCoppertransition metalZnZinctransition metalYYttriumtransition metal
# Titanium FAQ
What is the atomic number of titanium?
The atomic number of titanium is 22: every titanium atom has 22 protons in its nucleus. Its symbol is Ti.
What is the atomic mass of titanium?
The standard atomic mass of titanium is 47.867 u.
What is the electron configuration of titanium?
Titanium's electron configuration is [Ar] 3d² 4s² (1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s²), with 2, 8, 10, 2 electrons per shell.
Is titanium a metal?
Yes. Titanium is a transition metal, one of the metals.
What is the melting point of titanium?
Titanium melts at 1941 K (1667.8 °C, 3034.1 °F) and boils at 3560 K (3286.8 °C, 5948.3 °F).
What is titanium used for / known for?
As strong as many steels but much lighter; used in aircraft, medical implants and as white pigment (titanium dioxide).