Name the following

A metal present in period $3$, group $1$ of the periodic table.

1. Sodium is an alkaline metal.
2. The atomic number of Sodium is 11.
3. The electronic configuration of Sodium is $2,8,1$.
4. So the group is $1$ since the valence electron count is one, And the period is 3, since the shells present is 3.
5. So the metal is Sodium(Na).