. "atomic number"@en-us . . . "109770877"@en-us . . "13598715-n"^^ . . "112832706"@en-us . . "atomic number"^^ . . "0"^^ . "113598715"^^ . "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"@en-us . . . "0"^^ .