Asample of gaseous neon atoms at atmospheric pressure and 0 °c contains 2.69 * 1022 atoms per liter. the atomic radius of neon is 69 pm. what fraction of the space do the atoms occupy? what does this reveal about the separation between atoms in the gaseous phase?

Explanation

Radius of neon atom : 69 pm =

Volume occupied by the one atom:

given that atoms are present in 1L

1 L = 0.001

The volume occupied by the neon atoms

Fraction of volume occupied by the neon atom:

The fraction of of volume occupied by the neon atom is very less than the 1 L which indicates the presence of large amount of empty space between the atoms of the gas.

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

i just learnt this recently but i need to look through my notes again