# Problem: To derive the ideal-gas equation, we assume that the volume of the gas atoms/molecules can be neglected.Given the atomic radius of neon, 0.69 Å , and knowing that a sphere has a volume of 4/3 πr3, calculate the fraction of space that Ne{ m Ne} atoms occupy in a sample of neon at STP.

###### Problem Details

To derive the ideal-gas equation, we assume that the volume of the gas atoms/molecules can be neglected.

Given the atomic radius of neon, 0.69 Å , and knowing that a sphere has a volume of 4/3 πr3, calculate the fraction of space that Ne atoms occupy in a sample of neon at STP.