Question

Explain how sodium ion is formed?

Answer 1

Formation of sodium ion:

1. A sodium ion is a positively charged ion i.e. cation, which has one unit of positive charge.
2. A sodium atom $\left(\mathrm{Na}\right)$ loses one electron from the outermost shell and forms a sodium ion $\left({\mathrm{Na}}^{+}\right)$
3. The reaction is as follows: $\mathrm{Na}\to {\mathrm{Na}}^{+}+{\mathrm{e}}^{-}$

Thus, a sodium ion is formed when a sodium atom loses one electron.