# Question #e3c60

Oct 12, 2015

A bond formed between a metal and non-metal.

#### Explanation:

Ionic bonds are formed between metals and non-metals.

The metal transfers electrons to the non-metal.

This causes the formation of a cation (+ve charge) and an anion (-ve) charge, and hence there is an attraction between these ions.

E.g., the balanced equation for the reaction between $\text{Na}$ and ${\text{Cl}}_{2}$ is

${\text{2Na + Cl"_2 → "2Na"^+"Cl}}^{-}$.

$\text{Na}$ has 1 electron in its outer shell, and $\text{Cl}$ has 7.

So $\text{Na}$ needs to donate one electron to attain the stable octet of neon, and $\text{Cl}$ needs to gain one electron to attain the stable octet of argon.

The transfer of electrons forms an ionic compound, $\text{NaCl}$, more commonly known as common salt.