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Consider the two electron arrangements for neutral atoms A and B. What is the atomic number of A? A - 1s?, 2s 2p6,35 B - 1s2, 2s 2p, 5s
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Consider the two electron arrangements for neutral atoms A and B. What is the atomic number of A?

A - 1s?, 2s 2p6,35
B - 1s2, 2s 2p, 5s

User Trinaldi
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Your answer is B: The outer electron of Adam B has moved to a higher energy state
User Guillermo Barreiro
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