Roentgenium Rg

Roentgenium is the 111 element in periodic table situated in 7 period.

Symbol	Rg
Number	111
Atomic weight	Нестабилен
Latin name	Roentgenium
English name	Roentgenium

How to build an electronic configuration by yourself? See link

Electronic configuration of of Roentgenium

Rg: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d⁹

Short notation:
Rg: [Xe]6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d⁹

Same electronic configuration has an atom of Roentgenium and Cn⁺¹

The order of filling the shells with electrons of Roentgenium (Rg): 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’

Roentgenium has 111 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

10 electrons on 4d-sub level

6 electrons on 5p-sub level

2 electrons on 6s-sub level

14 electrons on 4f-sub level

10 electrons on 5d-sub level

6 electrons on 6p-sub level

2 electrons on 7s-sub level

14 electrons on 5f-sub level

9 electrons on 6d-sub level

Oxidation state of Roentgenium

Atoms of Roentgenium in compounds have an oxidation state of 3, -1.

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.

Ions of Roentgenium

Valence of Rg

Atoms of Roentgenium in compounds have valence III, I.

Valence of Roentgenium is an ability of an atom Rg 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 Rg

Quantum numbers are defined by the last electron in configuration, for an atom Rg these numbers are N = 6, L = 2, M_l = 1, M_s = -½

Filling an electronic configuration (gif):



Result: