numeral
digit
discriminant
An exclamation mark after a number is the symbol for the factorial function.
A prime symbol or number is given to a number that has only 2 factors which are itself and one
It is the power, index or exponent.
variable
digit
variable
A symbol name that can be displayed on a keyboard might include the pound sign or the number symbol. The dollar symbol can also be displayed on the keyboard.
the "number symbol" ( You know 'item # 4.')
formula
Iron (symbol Fe, atomic number 26) is subject to corrosion.
Atomic number 53 is Iodine (I).
Mendelevium, symbol: Md
Potassium, with an Atomic Number of 19, is designated by the symbol 'K'.
The symbol of an element is an abbreviation for the element's name, and it is derived either from the English or the Latin name. For example: Bromine's symbol is Br. The symbol inside an element's square is the element's atomic number, or the number of protons and neutrons in the element.
This element is phosphorus: symbol P, group 15.
ampersand