atomic number

1. 1.

   the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element

   Broadernumber

   Narrowermagic number

Questions about atomic number

What does atomic number mean?

atomic number means "the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element".

Is atomic number a common word?

atomic number is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.