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

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

(Blank) what's the answer

User Celestino
by
8.2k points

2 Answers

4 votes
The answer would be atomic weight 
User Nick Van Brunt
by
8.8k points
3 votes
atomic number


is the answer
User Kevin McCarpenter
by
7.8k points
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