At its boiling point (280°C) and at atmospheric pressure, phosphorus gas has a density of 2.7 gL–1. Under the same conditions, nitrogen gas has a density of 0.62 g L–1. How many atoms ofphosphorus...

At its boiling point (280°C) and at atmospheric pressure, phosphorus gas has a density of 2.7 g L–1 . Under the same conditions, nitrogen gas has a density of 0.62 g L–1 . How many atoms of phosphorus are there in one phosphorus molecule under these conditions?