Describe the atom. Answer choices:
1. Is a neutral atom and has no net charge
2. Has a positive net charge, so it’s an ion
3. A molecule
4. Has a negative net charge, so it’s an ion

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.