how many of the elements on the current periodic table can contain orbitals having n = 1 as their principal quantum number? enter a numerical value.

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

Not a  mixture of two common elements that can be separated by physical means.

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