A. 3s orbital
B. 2px
C. 2s orbital
D. 1s orbital
Correct Answer: Option A
Explanation
12Mg=2,8,2
=1s²2s²2p63s²
![In which of the following atoms is the ionic radius larger than the atomic radius? [11Na, 12Mg,13AI,17CI]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "In which of the following atoms is the ionic radius larger than the atomic radius? [11Na, 12Mg,13AI,17CI]")
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