Titanium (Ti)
Titanium is the 22nd element, a transition metal in the d-block. Its standard atomic weight is 47.867.
Titanium
47.867
What the table records
- Atomic number
- 22
- Standard atomic weight
- 47.867
- Group
- 4
- Period
- 4
- Block
- d-block
- Category
- Transition metal
- [Ar] 3d2 4s2
- Valence electrons
- 4
- Typical valence
- Van der Waals radius
- 2.15 Å
- Covalent radius
- 1.6 Å
Molecules containing titanium
The lightest named structures in this library that contain Ti.
TiIII
Ti+3 · 47.87 g/mol
Titanium
Ti · 47.87 g/mol
Titanium cation (4+)
Ti+4 · 47.87 g/mol
Titanium dioxide
O₂Ti · 79.87 g/mol
Chlorotitanium(3+)
ClTi+3 · 83.32 g/mol
(T-4)-Dichlorobis(2-propanolato)titanium
C₆H₁₄Cl₂O₂Ti · 236.95 g/mol
Chlorotitanium triisopropoxide
C₉H₂₁ClO₃Ti · 260.58 g/mol
Titanium isopropoxide
C₁₂H₂₈O₄Ti · 284.22 g/mol
How to read these numbers
The standard atomic weight is an average over the isotopes as they occur naturally, which is why it is rarely a whole number. It is the figure a molar mass calculation uses. Work in mass spectrometry wants the monoisotopic mass of a single isotope instead, which is a different number.
The two radii are not the same measurement. The covalent radius is half the distance between two bonded atoms of the element; the van der Waals radius is how close a non-bonded atom gets before repulsion takes over, and is always the larger. Space-filling models are drawn with the second, ball-and-stick models with the first — which is why the same molecule looks so different in the two.