Titanium (Ti)
Titanium is the chemical element with atomic number 22 and symbol Ti. It is a transition metal in period 4, group 4, with a standard atomic weight of 47.867 u.
Key facts
- Z
- 22
- Atomic weight
- 47.867 u
- Category
- transition metal
- State at 298 K
- Solid
- Occurrence
- primordial
- Discovered
- 1791
- CAS
- 7440-32-6
Measured properties
| Property | Value | Source |
|---|---|---|
| Electronegativity | 1.54 | National Center for Biotechnology Information (NIH) |
| Melting point | 1,941 K | National Center for Biotechnology Information (NIH) |
| Boiling point | 3,560 K | National Center for Biotechnology Information (NIH) |
| Density stp | 4.5 g/cm³ | National Center for Biotechnology Information (NIH) |
| Atomic radius empirical | 187 pm | National Center for Biotechnology Information (NIH) |
| Ionization energy 1st | 658.8 kJ/mol | National Center for Biotechnology Information (NIH) |
| Electron affinity | 7.6 kJ/mol | National Center for Biotechnology Information (NIH) |
Electron configuration
- Noble gas notation
- [Ar] 3d² 4s²
- Full notation
- 1s² 2s² 2p⁶ 3s² 3p⁶ 3d² 4s²
- Electrons per shell
- 2, 8, 10, 2