Question

The electronic configuration of an element is 2, 8, 2. Name the element.

Answer 1

• The element with electronic configurations 2, 8, and 2 is Magnesium$\left(\mathrm{Mg}\right)$.
• The atomic number of Magnesium is 12.
• It belongs to the group of alkaline earth metal group.
• The valency of magnesium is +2.