Ion B3+
Symbol | B3+ |
Number | 5 |
Atomic weight | 10.8060000 |
Latin name | Borum |
English name | Boron |
Electronic configuration of of Boron
B: 1s2 2s2 2p1 → B3+:1s22s02p0
Same electronic configuration has an ion of Boron +3 and H-1, He, Li+1, Be+2, C+4, N+5
The order of filling the shells with electrons of Boron (B3+): 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’
Boron has 5 electrons, let's fill electronic layers in described order:
2 electrons on 1s-sub level
Oxidation state of Boron
Atoms of Boron in compounds have an oxidation state of 3, 2, 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.
Oxidation state of an ion B3+ = 3
Ions of Boron
Valence of B3+
Atoms of Boron in compounds have valence III, II, I.
Valence of Boron is an ability of an atom B 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 B 3+
Quantum numbers are defined by the last electron in configuration, for an ion B these numbers are N = 1, L = 0, Ml = 1, Ms = -½
Filling an electronic configuration (gif):Result:
Compounds of Boron
Type | Formula | Name |
---|---|---|
Acid | H3BO3 | Boric acid |
Oxide | B2O3 | Boron oxide |
See all elements of the periodic table
Where is B in the periodic table?