Take a sample of lead and oxygen. They contain different atoms and the density of solid lead is much greater than that of gaseosu oxygen. Decide whether the density of the nucleus in a lead atom is greater than, approximately equa to, or less than that in an oxygen atom.

Explanation

The nuclear density is nearly same in all atoms. The difference in densities between solid and lead and gaseous oxygen arises mainly because of the difference in how closely the atoms themselves are packed together in sloid and gaseous phase.