Answer:
youre gonna have to include the answers for me to help
Explanation:
Answer:
At the top of Group 11 above silver and gold.
Period 4
Explanation:
A. 1 proton and 1 neutron
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.