Transition metals
Titanium
A strong, light, corrosion-proof metal for implants and jets.
Atomic #22Mass47.867Blockd-blockPeriod4Group4
Ti22 · 47.867
3D Atom Explorer
Inside the Titanium atom
Switch between Bohr and Quantum Cloud modes to compare a simple teaching model with a more realistic probability-based view, and follow the guided tour to explore the Titanium atom step by step.
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Electron configuration
[Ar] 3d2 4s2
A neutral Titanium atom has 22 electrons (equal to its proton count). Choosing a different isotope above changes only the neutron count.
Shell distribution
Shell 12 e⁻Shell 28 e⁻Shell 310 e⁻Shell 42 e⁻
Electrons fill inner shells before outer ones; the outermost (valence) shell drives the element's chemistry.
Properties
Physical & atomic properties
- State (room temp)
- Solid
- Melting point
- 1941 K (1668 °C)
- Boiling point
- 3560 K (3287 °C)
- Density
- 4.54 g/cm³
- Electronegativity
- 1.54 Pauling
- Atomic radius
- 140 pm
- 1st ionization energy
- 659 kJ/mol
- Category
- Transition metals
History
Discovery & naming
- Discovered
- 1791
- Discovered by
- William Gregor
- Origin of name
- The Titans of Greek mythology.
Notable uses
Aircraft, medical implants, and white pigment.
Cosmic origin
Where Titanium comes from
Supernovae
Chiefly a product of explosive silicon burning during supernovae.
Simplified origin map — many elements form through more than one astrophysical pathway.
Summary
- Atomic number
- 22
- Atomic mass
- 47.867
- Category
- Transition metals
- Group · Period
- 4 · 4
- Block
- d-block
- Shells
- 2 · 8 · 10 · 2