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Chemistry

Answered

Magnesium (Mg) has nine electrons. Which of the following shows the correct electron configuration for an atom of Mg?

2, 2, 5
7, 2
1, 8
2, 7

brailyist please help me

Answer :

Autumnspringgo Autumnspringgo

Answer:

2,7

Explanation:

Two in the first shell and 7 in the outer and last shell.

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Flynnelijahgo Flynnelijahgo

Answer:

D: 2, 7

Explanation:

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