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