Ion Cu4+
| Symbol | Cu4+ |
| Number | 29 |
| Atomic weight | 63.5460000 |
| Latin name | Cuprum |
| English name | Copper |
Electronic configuration of of Copper
Cu: 1s2 2s2 2p6 3s2 3p6 4s1 3d10 → Cu4+:1s22s22p63s23p64s03d7
The same amount of electrons as an ion of Copper +4 have: V-2, Mn, Fe+1, Co+2, Ni+3
The order of filling the shells with electrons of Copper (Cu4+): 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’
Copper has 29 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
7 electrons on 3d-sub level
Oxidation state of Copper
Atoms of Copper in compounds have an oxidation state of 4, 3, 2, 1, 0.
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 Cu4+ = 4
Ions of Copper
Valence of Cu4+
Atoms of Copper in compounds have valence IV, III, II, I.
Valence of Copper is an ability of an atom Cu 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 Cu 4+
Quantum numbers are defined by the last electron in configuration, for an ion Cu these numbers are N = 3, L = 2, Ml = -1, Ms = -½
Filling an electronic configuration (gif):
Result:
See all elements of the periodic table
Where is Cu in the periodic table?
