Chemical symbols are used to represent and identify elements in chemistry. Elements are distinct substances that cannot be split into simpler substances by chemical means.
They are made up of only one kind of atoms.
Each element is symbolized by a chemical symbol.
A chemical symbol consists of:
A capital letter
A capital letter followed by a small letter derived from English or Latin or Greek name of the element.
There are no states in the picture, but Na should have a "(s)" after it, and Cl2 should have a "(g)" after it. NaCl should have an "(s)". Chlorine is a diatomic element so it has a "2" subscript on it.
