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Mohan Batra
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Asked: 2025-02-03T10:51:11+00:00 In:

Which of the following correctly represent the electronic distribution in the Mg atom?

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Poll Results

0%(a) 3,8,1
100%(b) 2,8,2 ( 2 voters )
0%(c) 1,8,3
0%(d) 8,2,2
Based On 2 Votes

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The correct answer is (b) 2,8,2.
Magnesium (Mg) has an atomic number of 12, meaning it has 12 electrons. The electronic distribution follows the 2,8,2 pattern according to the Bohr model, where the first shell holds 2 electrons, the second holds 8, and the third holds 2.
Class 9th Science NCERT MCQ Questions
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    1 Answer

    1. (b) The electronic configuration of Mg is 2, 8, 2. (Atomic Number 12).

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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