Question

Which of the following correctly represents the electronic distribution in the Mg atom?
(a) 3, 8, 1
(b) 2, 8, 2
(c) 1, 8, 3
(d) 8, 2, 2
​

Answer 1

the correct answer is b

because Mg atomic number is

12 so 2 in first shell,

8 in second shell,

2 in third or valence shell

Mark my answer as brainlest