An element's symbol
One or two letters: the first always a capital, the second always lowercase. Many come from Latin: (ferrum), (natrium), (cuprum), (aurum).
7 min
Chemical symbols and formulas
Capital, lowercase, subscript, coefficient: the four writing rules, and the method for counting atoms without slipping.
The essentials
2
The subscript
Members only
3
The coefficient
Members only
4
Subscript or coefficient?
Members only