Ion Tc^3-

Symbol	Tc3-
Number	43
Atomic weight	Нестабилен
Latin name	Technetium
English name	Technetium

How to build an electronic configuration by yourself? See link

Electronic configuration of of Technetium

Tc: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d⁵ → Tc^3-:1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d⁸

Same electronic configuration has an ion of Technetium -3 and Cd⁺², In⁺³, Sn⁺⁴, Sb⁺⁵, Te⁺⁶, I⁺⁷, Xe⁺⁸

The order of filling the shells with electrons of Technetium (Tc^3-): 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’

Technetium has 43 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

10 electrons on 3d-sub level

6 electrons on 4p-sub level

2 electrons on 5s-sub level

8 electrons on 4d-sub level

Oxidation state of Technetium

Atoms of Technetium in compounds have an oxidation state of 7, 6, 5, 4, 3, 2, 1, 0, -1, -3.

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 Tc^3- = -3

Ions of Technetium

Valence of Tc^3-

Atoms of Technetium in compounds have valence VII, VI, V, IV, III, II, I.

Valence of Technetium is an ability of an atom Tc 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 Tc ^3-

Quantum numbers are defined by the last electron in configuration, for an ion Tc these numbers are N = 4, L = 2, M_l = 0, M_s = -½

Filling an electronic configuration (gif):



Result: