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No such substance as magnesium **DI**oxide.

It is magnesium oxide.

The chemial formula is MgO.

MgO is an IONIC bons. Magnesium metal ionises two electrons

Hence

Mg(s) = Mg^(2+) + 2e^(-)

Oxygen has an electron affinity for two electrons.

Hence

O+ 2e^(-) = O^(2-)

Since the charges balance and are opposite , the two ionis come together by electrostatic attraction, just like the N & S poles of a magnet. They do NOT share electrons.

Mg^(2+) + O^(2-) = MgO(s)

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lenpollock

Lvl 16
1y ago

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