Chemistry

4 January, 14:57

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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