Titanium (Ti)
Transition metal · d-block · period 4 · group 4
Strong, lustrous, silvery metal.
Titanium (symbol Ti) is chemical element number 22, a transition metal in group 4, period 4 of the periodic table. Its standard atomic weight is 47.867 and its electron configuration is [Ar] 3d2 4s2. At room temperature it is a solid. As strong as steel but about 45% lighter.
Properties
| Atomic number | 22 |
|---|---|
| Atomic mass | 47.867 |
| Category | Transition metal |
| Block | d-block |
| Group · Period | 4 · 4 |
| Electron configuration | [Ar] 3d2 4s2 |
| Electrons per shell | 2, 8, 10, 2 |
| State at 25 °C | solid |
| Melting point | 1941 K |
| Boiling point | 3560 K |
| Density | 4.506 g/cm³ |
| Electronegativity (Pauling) | 1.54 |
| Radioactive | No |
| Origin | primordial |
| Discovered | 1791 · William Gregor |
Key facts about Titanium
- As strong as steel but about 45% lighter.
- Completely resistant to seawater and to body fluids, so it is used for implants.
- Named after the Titans of Greek mythology.
- Titanium dioxide is the brilliant white pigment in most paints, sunscreens and toothpastes.
What Titanium is used for
Aircraft and spacecraft, medical implants, white pigment, sports equipment, desalination plants.
Where it sits in the periodic table
Titanium is in group 4, period 4, of the d-block. Its electron configuration [Ar] 3d2 4s2 means its outermost shell holds 2 electrons, which is what places it here and explains much of its chemistry. See Titanium on the interactive table →
Titanium — frequently asked questions
What is Titanium used for?
Aircraft and spacecraft, medical implants, white pigment, sports equipment, desalination plants.
Is Titanium radioactive?
No. Titanium has at least one stable isotope and is not radioactive.
What is the electron configuration of Titanium?
Titanium has the electron configuration [Ar] 3d2 4s2, which is 2, 8, 10, 2 electrons per shell.
What group and period is Titanium in?
Titanium is in group 4, period 4, in the d-block. Its outer shell holds 2 electrons.
Who discovered Titanium?
Titanium was discovered in 1791 by William Gregor.