Question

PLEASE TELL ME THE CORRECT ANSWER THEN I WILL MARK YOU BRAINLIEST!!!!
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Answer 1

Answer:

The number of outer shell electrons determines the group number of the element. The number of occupied principle quantum shells (energy levels) determines the period of the element. The proton number determines the element itself and its position.

Answer 2

Answer:

The number of outer shell electrons determines the group number of the element. The number of occupied principle quantum shells (energy levels) determines the period of the element. The proton number determines the element itself and its position.