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

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asked May 12, 2022 123k views

2 votes

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

Chemistry
high-school

Sanvir Manilal asked

by Sanvir Manilal

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1 Answer

4 votes

Answer:

2,7

Step-by-step explanation:

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

HOPE THIS HELPED

Tristan Juricek answered May 15, 2022

by Tristan Juricek

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