Question

Do the non-metals have the low density ?

Answer 1

1. Non-metal tend to exist either in the gaseous or the liquid state.
2. Non-metals lack the closed and dense packing in the lattice that is found in the metals.
3. The bonding between the atoms is weak in non-metals and there is a negligible force of attraction that's why non-metals have low density.

Therefore, the Non-metals have a low density.