Ion Ti^2-

Symbol	Ti2-
Number	22
Atomic weight	47.8670000
Latin name	Titanium
English name	Titan

How to build an electronic configuration by yourself? See link

Electronic configuration of of Titan

Ti: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d² → Ti^2-:1s²2s²2p⁶3s²3p⁶4s²3d⁴

Same electronic configuration has an ion of Titan -2 and V^-1, Mn⁺¹, Fe⁺², Co⁺³, Ni⁺⁴

The order of filling the shells with electrons of Titan (Ti^2-): 1s → 2s → 2p → 3s → 3p → 4s → 3d → 4p → 5s → 4d → 5p → 6s → 4f → 5d → 6p → 7s → 5f → 6d → 7p.

On the sub level ‘s’ there might be 2 electrons at most, on ‘p’ - up to 6, on ‘d’ - up to 10 and up to 14 on ‘f’

Titan has 22 electrons, let's fill electronic layers in described order:

2 electrons on 1s-sub level

2 electrons on 2s-sub level

6 electrons on 2p-sub level

2 electrons on 3s-sub level

6 electrons on 3p-sub level

2 electrons on 4s-sub level

4 electrons on 3d-sub level

Oxidation state of Titan

Atoms of Titan in compounds have an oxidation state of 4, 3, 2, 0, -1, -2.

The oxidation state is the conditional charge of an atom in a compound: the bond in a molecule between atoms is based on the sharing of electrons, thus, if the atom’s charge virtually increases, then the oxidation state is negative (electrons carry a negative charge), if the charge decreases, then the oxidation state is positive.

Oxidation state of an ion Ti^2- = -2

Ions of Titan

Valence of Ti^2-

Atoms of Titan in compounds have valence IV, III, II, I.

Valence of Titan is an ability of an atom Ti to build chemical bounds. The valence is based on electronic configuration of atom: electrons participated in chemical bounds are known as valence electrons. In general the valence is:

The number of possible chemical bounds with other atoms

The valence has no sign.

Quantum numbers Ti ^2-

Quantum numbers are defined by the last electron in configuration, for an ion Ti these numbers are N = 3, L = 2, M_l = 1, M_s = +½

Filling an electronic configuration (gif):



Result: