Ion Y2+
| Symbol | Y2+ |
| Number | 39 |
| Atomic weight | 88.9058400 |
| Latin name | Yttrium |
| English name | Yttrium |
Electronic configuration of of Yttrium
Y: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d1 → Y2+:1s22s22p63s23p64s23d104p65s14d0
Same electronic configuration has an ion of Yttrium +2 and Rb, Zr+3, Tc+6
The order of filling the shells with electrons of Yttrium (Y2+): 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’
Yttrium has 39 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
1 electron on 5s-sub level
Oxidation state of Yttrium
Atoms of Yttrium in compounds have an oxidation state of 3, 2.
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 Y2+ = 2
Ions of Yttrium
Valence of Y2+
Atoms of Yttrium in compounds have valence III, II.
Valence of Yttrium is an ability of an atom Y 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 Y 2+
Quantum numbers are defined by the last electron in configuration, for an ion Y these numbers are N = 5, L = 0, Ml = 0, Ms = +½
Filling an electronic configuration (gif):
Result:
See all elements of the periodic table
Where is Y in the periodic table?
