What meaning of the letters in the periodic table?

Answer 1

The letters on the Periodic Table represent the name of the elements. They are called the element's "symbols." They are usually related to the English names, but some, like lead, are related to their Latin names.

Answer 2

The letters in the periodic table represent the chemical symbols of the elements. These symbols are typically one or two letters derived from the element's name in English, Latin, or another language. For example, "H" represents hydrogen, "O" represents oxygen, and "Au" represents gold.