Consider a Sample of Helium and a Sample of Neon,both

Multiple Choice

Consider a sample of helium and a sample of neon,both at 30.0°C and 1.5 atm.Both samples have a volume of 5.0 liters.Which statement concerning these samples is not true?

A) Each sample contains the same number of atoms of gas.
B) Each sample weighs the same amount.
C) Each sample contains the same number of moles of gas.
D) The density of the neon is greater than the density of the helium.
E) none of the above