22 2 · 8 · 10 · 2

Titanium, Ti, element 22

Transition metal· Period 4· Group 4· d-block

Configuration [Ar]3d²4s²

Atomic weight: 47.867Da
Phase: solid
Density: 4.506g/cm³
Melting point: 1,943.15K 1,670 °C
Boiling point: 3,560.15K 3,287 °C
Electronegativity: 1.54

White metallic transition element. Occurs in numerous minerals. Used in strong, light corrosion-resistant alloys. Forms a passive oxide coating when exposed to air. First discovered by Gregor in 1789. Description from mendeleev.

Back to the table

The outermost shell: the valence electronsThe inner shellsThe nucleus One bead for each electron, on the ring of its shell, counted from the nucleus out. The rings turn at their own pace; the model is Bohr's picture of the atom, which places electrons in shells but not on true orbits.

Atomic properties

5 of 5 fields have a value for titanium

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.: 47.867Da; Source: mendeleev
Electron configuration: [Ar]3d²4s²; Source: mendeleev
Uncertainty of the atomic weight: 0.001Da; Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.: 1s²2s²2p⁶3s²3p⁶3d²4s²; Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.: 2 · 8 · 10 · 2; Source: Worked outfrom electron configuration

Screening of each subshell

Clementi's screening constants: how much of the nucleus's charge the other electrons hide from an electron in each subshell. What is left is the effective nuclear charge it feels.

Subshell	Screening σ	Effective charge Z − σ
1s	0.5591	21.4409
2s	6.6234	15.3766
2p	3.9352	18.0648
3s	10.9669	11.0331
3p	11.8963	10.1037
3d	13.8586	8.1414
4s	17.1832	4.8168