Titanium (Ti): electron configuration, atomic mass and facts
Titanium (Ti) is element 22 of the periodic table, a transition metal in period 4, group 4. Its electron configuration is [Ar] 3d2 4s2, with electrons arranged in shells 2, 8, 10, 2, and its standard atomic weight is 47.867 u.
💡 As strong as many steels but much lighter, so it is used in aircraft and implants.
▶ Watch Titanium’s electrons orbit in the interactive periodic tableTitanium at a glance
| Symbol | Ti |
|---|---|
| Atomic number | 22 |
| Atomic mass | 47.867 u |
| Category | Transition metal |
| Group | 4 |
| Period | 4 |
| Block | d-block |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d2 4s2 |
| Noble-gas shorthand | [Ar] 3d2 4s2 |
| Electrons per shell | 2, 8, 10, 2 |
| Electronegativity (Pauling) | 1.54 |
| State at 20 °C | solid |
Where is Titanium on the periodic table?
Titanium is in period 4, group 4, in the d-block. The period number matches its 4 electron shells, and the block names the subshell its last electrons fill. In the same group, Zirconium sits directly below it. Elements in the same column of the d-block often have similar chemistry.
How to work out the electron configuration of Titanium
Put 22 electrons into subshells in order of rising energy, filling each before starting the next: 1s² (2), 2s² (4), 2p⁶ (10), 3s² (12), 3p⁶ (18), 4s² (20), 3d² (22). In shorthand, [Ar] stands for the 18 electrons of argon, giving [Ar] 3d² 4s².
How electronegative is Titanium?
Titanium has a Pauling electronegativity of 1.54, ranking 54 of the 100 elements with a known value (fluorine is highest at 3.98). That is in the middle of the range.
Frequently asked questions
What is the electron configuration of Titanium?
The electron configuration of Titanium (Ti) is 1s2 2s2 2p6 3s2 3p6 3d2 4s2. In noble-gas shorthand it is written [Ar] 3d2 4s2.
How many electrons does Titanium have in each shell?
Titanium has 22 electrons arranged in shells as 2, 8, 10, 2.
What is the atomic mass of Titanium?
The standard atomic weight of Titanium is 47.867 u, so one mole of Titanium atoms has a mass of about 47.867 g.
Is Titanium a metal?
Yes. Titanium is a transition metal.
Explore nearby elements
More transition metals: Scandium, Vanadium, Chromium, Manganese, Iron, Cobalt. See all elements on the periodic table.