Question

In the present periodic table containing 118 elements: How many alkali metals exist in a periodic table?

Answer 1

• Alkali metals are elements that have one electron in their valence shell. So, all group 1 elements are known as alkali metals and they are placed on the left of the periodic table.
• There are six alkali metals in the periodic table present in group 1.
• The six alkali metals are Lithium$\left(\mathrm{Li}\right)$, Sodium$\left(\mathrm{Na}\right)$, Potassium$\left(\mathrm{K}\right)$, Rubidium$\left(\mathrm{Rb}\right)$, Caesium$\left(\mathrm{Cs}\right)$, and Francium$\left(\mathrm{Fr}\right)$.