Helium is before lithium on the periodic table because the periodic table arranges elements by increasing _______ . (Blank) what's the answer

asked Mar 1, 2018 3.2k views

2 votes

Helium is before lithium on the periodic table because the periodic table arranges elements by increasing _______ .

(Blank) what's the answer

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4 votes

The answer would be atomic weight

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3 votes

atomic number

is the answer