Question

Which is the most likely way in which an atom of magnesium (Mg) satisfies the octet rule when it forms bonds?

a) Losing two electrons
b) Gaining two electrons
c) Sharing two electrons
d) Losing one electron

Answer 1

When magnesium (Mg) forms bonds, it is most likely to satisfy the octet rule by losing two electrons.

Step-by-step explanation:

In this case, the magnesium atom loses its two valence electrons in order to achieve the same noble gas configuration. The aluminum atom loses its three valence electrons.

The Mg²+ ion, the Al³+ ion, the Nation, and the ceNe atom are all isoelectronic.

For representative elements under typical conditions, three electrons are the maximum number that will be lost.

We can also show the loss of valence electron(s) with an electron dot diagram: