Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of protons in the nucleus ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

Sometimes it is easy to tell which element a symbol stands for. For example, C stands for carbon and Li stands for lithium. But sometimes the symbol comes from a name for the element that is not ...