# Which group of elements typically forms ions with a 2+ charge?

Jan 31, 2017

#### Answer:

$\text{The Group 2 metals...........}$

#### Explanation:

$\text{The Group 2 metals; the alkaline earths}$.

Look at the Periodic Table, and look at the second COLUMN; you see $B e , M g , C a , S r , B a$. Because the Periodic Table reflects electronic structure, all of these metals have the TWO VALENCE ELECTRONS, which can be lost on oxidation. (Metals are electron-rich species that tend to be oxidized).

And we can represent the oxidation:

$M g \rightarrow M {g}^{2 +} + 2 {e}^{-}$

On the other hand, the transition metals of the $\text{d-block}$ commonly form bivalent metal cations:

$M \rightarrow {M}^{2 +} + 2 {e}^{-}$

These electrons are also conceived to derive from $\text{s-orbitals.}$