The atomic mass or mass number of an atom is written as superscripts attached to the symbol of that element.
Atomic mass or mass number
- The atomic mass or mass number of an atom of an element is the sum of the number of protons and neutrons in the nucleus of the atom.
The atomic mass or mass number of an atom is usually written as superscripts attached to the symbol of that element.
For example, given an element X, the atomic mass or mass number can be shown as follows: [tex]_{a}^bX[/tex]
where a = atomic number
b = atomic mass/mass number
Therefore, the atomic mass or mass number of an atom is written as superscripts attached to the symbol of that element.
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