Definition, Meaning & Synonyms
atomic number
noun
/əˈtɒmɪk ˈnʌmbər/

Definition
The atomic number is the number of protons found in the nucleus of an atom.

Examples
- The atomic number of hydrogen is 1.
- Carbon has an atomic number of 6.
- The atomic number can help identify the element’s position in the periodic table.

Meaning
It determines the chemical properties of an element and its place in the periodic table.

Synonyms
- nuclear charge
- element identifier