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12 November, 22:42

If an atom is located in the 3rd period, which of the following is true:

A. It will have 2 energy levels.

B. It will have 3 energy levels.

C. It can hold a maximum of 8 electrons in the third energy level

D. It can hold a maximum of 18 electrons in the second energy level

E. It will be in the same row as magnesium

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Answers (1)
  1. 13 November, 01:46
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    B, C, and E are correct
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