Ion K+
Symbol | K+ |
Number | 19 |
Atomic weight | 39.0983000 |
Latin name | Kalium, Calium |
English name | Potassium |
Electronic configuration of of Potassium
K: 1s2 2s2 2p6 3s2 3p6 4s1 → K+:1s22s22p63s23p64s0
Same electronic configuration has an ion of Potassium +1 and Si-4, P-3, S-2, Cl-1, Ar, Ca+2, Sc+3, Ti+4, V+5, Mn+7
The order of filling the shells with electrons of Potassium (K+): 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’
Potassium has 19 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
Oxidation state of Potassium
Atoms of Potassium in compounds have an oxidation state of 1, -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 K+ = 1
Ions of Potassium
Valence of K+
Atoms of Potassium in compounds have valence I.
Valence of Potassium is an ability of an atom K 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 K 1+
Quantum numbers are defined by the last electron in configuration, for an ion K these numbers are N = 3, L = 1, Ml = 1, Ms = -½
Filling an electronic configuration (gif):Result:
See all elements of the periodic table
Where is K in the periodic table?