Question

Do alkali metals have low density?

Answer 1

Step 1: Definition of Density

Density: It is the ratio of Mass $\left(m\right)$ to the Volume $\left(V\right)$.

$d=\frac{m}{V}$

From the above formula, it can be understood that, in a substance, the density increases with the increase in the mass and decrease in the volume and vice-versa.

Step 2: Density of Alkali metals:

The Atomic mass is less and the Volume is high for Alkali metals when compared to the remaining elements in a particular period.

Yes. The Density of the Alkali metals is Low when compared to the remaining elements in a particular period.