Question #8b79c

1 Answer
Apr 21, 2017

Sulphur number 16 can gain 2 electrons or lose 2, 4 or 6 electrons.

Explanation:

Sulphur has a grown state electron configuration of 1s^22s^2 2p^6 3s^2 3p^4

This is the same outer valance of Oxygen. This gives Sulphur two unpaired electrons in its outer shell. When joined to Oxygen or another element with a higher electron negativity than sulphur it can lose those two electrons resulting in a +2 charge.

When Sulphur is joined to an element with a lower electron negativity it can used the same two unpaired p electrons to bond resulting in a -2 charge. This would be sulphur's preferred state.

Since sulphur is in the third row it can hybridize its six valance electrons into the 3d orbitals resulting in an electron configuration
of 3s^1 3p^3 3d^2 This higher energy electron configuration will allow Sulphur to use all six of its valance electrons to form bonds. This results in a +6 charge or a +4 charge if only four bonds are formed.

S=O Sulphur monoxide shows sulphur with a + 2 charge losing two electrons to Oxygen.

O=S=O Sulphur dioxide shows sulphur with a +4 charge losing four electrons to Oxygen
O=
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O= S =O (Sulfate ion -2) shows sulphur with a +6 charge losing all
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O- six electrons to Oxygen.