If you think to calcium the symbol is Ca.
It is called a chemical symbol.
That is the chemical symbol of an element, such a H for hydrogen, Hg for mercury, etc.
Chemical symbol
The letter or group of letters that represents an element is called its chemical symbol. Each element has a unique chemical symbol, typically derived from its name in English, Latin, or another language.
There is no element with the chemical symbol "bipolar."
This is known as the chemical symbol for the element.
This is known as the chemical symbol for the element.
The chemical symbol is one or two letters that represent an element.
The element aluminum has the chemical symbol Al
Hg is the chemical symbol for mercury
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The abbreviation of an element's name is called its chemical symbol, which is a one or two-letter representation used to identify elements in the periodic table. For example, the chemical symbol for oxygen is "O" and for hydrogen is "H."