How is the period number of elements related to their number of occupied energy level?
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Question
How is the period number of elements related to their number of
occupied energy level?
occupied energy level?
1 Answer
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1. User Answers vitaminzee
Answer:
The number n of a period on the periodic table is the same as the number of the highest principal energy level for the atoms on that row—that is, the principal energy level occupied by its valence electrons. Thus, elements on period 1 have a highest principal energy level of 1, and so on.