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URGENT!! please help me solve this i really don’t understand it
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5 votes
URGENT!!
please help me solve this i really don’t understand it

URGENT!! please help me solve this i really don’t understand it-example-1
User Jon Purdy
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1 Answer

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E because Helium’s atomic number is 2 so it has 2 electrons on each shell
User Mohammad Arshad Alam
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