Answer:
According to formula, magnesium gives electron forming a cation which is the property of metals according to periodic table.
Step-by-step explanation:
- Mg has a valency of two electrons which means it has two electron in the valence shell. It gives two electrons to an oxygen atom which becomes a anion.
- They form two ionic bond forming MgO.
- And the atoms of valency two are present in 2nd column which contains metals.
- Hence from formula, it can be known that Mg is a metal.