Are you talking about the number below the symbol? If so, that's the Atomic Mass number.
Electronic Configuration....
The little number at the bottom is called a subscript
If you think to the number of protons in an element atom this number is equal to atomic number of this element. The calculation of the mass of the proton and other properties are another questions and problems.
That number is called the atomic number.
Each atom of an element has the same number of protons which is unique for that particular element ( = atom number in the periodic system)
The element with an atomic number of 112 is called Copernicium. It is a synthetic, radioactive element that can only occur in a laboratory.
The combining capacity of an element with another element is called valencyOR The number of electron gained or lost by outermost shell of an element is called its valency
The little number under the Element symbol is known as the Atomic Number. The Atomic Number represents the number of protons located at the atom's nucleus. It also tells how many electrons are in the atom, considering the atom is a stable particle, the number of electrons and protons are equal in an atom at its normal state.
the number of protons in an element is called the atomic number and there is no way to see how many electrons an element has.
If you think to the number of protons in an element atom this number is equal to atomic number of this element. The calculation of the mass of the proton and other properties are another questions and problems.
they are called negative numbers. you show them like this. 3,2,1,0,-1,-2,-3,-4-------------------------------------------------If you are referring to fractions then the top number is called the numerator and the bottom number is called the denominator.---------------------------------------------------A little number like the 2 in the following expression"x2" is called a subscript.
The atomic number of the element is the subscript (bottom number) and the mass number is the superscript (top number); and both those numbers are written to the left of the element symbol.
the answer is that it is called a atomic number.
That number is called the atomic number.
The number on the bottom of a fraction is known as the "denominator."
the number of protons in an element is called the atomic number and there is no way to see how many electrons an element has.
They are called isotopes,
atomic number
The Atomic Number