Genius! Different molecules behave very differently. For example, H2O is the chemical formula for water. Without water, life, as we know it, won't exist. H2O2 is called Hydrogen Peroxide. It just has one extra O atom. But, H2O2 can be poisonous to us!
The number of atoms in one molecule of an element is called its atomicity. For example, the atomicity of O is \(2\), as the Oxygen molecule is O2.
A phosphorous molecule is represented by P4. What is its atomicity?