Please explain me atomicity in easy words.
The number of atoms bonded in a molecule of an element is called its atomicity. Molecules of elements can be classified by its atomicity as follows-
- Monoatomic molecule- elements having only one atom in their molecule, e.g. All noble gases – Helium (He), Neon (Ne), Argon (Ar), etc.) are monoatomic molecules.
- Diatomic molecule- elements having two atoms in their molecule, e.g. Hydrogen (H2), Nitrogen (N2), Oxygen (O2), Chlorine (Cl2), etc.
- Triatomic molecule- elements having three atoms in their molecule, e.g. Ozone (O3)
- Tetratomic molecule- elements having four atoms in their molecule, e.g. Phosphorus (P4)