Chemistry, asked by mohan7007331, 3 months ago

give correct Answer....​

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Answered by getknowledgeart
1

Answer:

the second is the correct answer

2,8,2

as it has atomic number 12

Answered by Anonymous
11

Answer:

8+2+2 is correct answer

Explanation:

Atomic number and the number of electrons in magnesium atom is 12. So, electronic configuration is 2, 8, 2 (because 12 = 2 + 8 + 2).

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