in which shell 3d sub shell is present
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Answer:
Lithium is the correct answer Mark it as brainliest Follow me Xd
Explanation:
1st Shell 1s 2
2nd Shell 2s, 2p 2 + 6 = 8
3rd Shell 3s, 3p, 3d 2 + 6 + 10 = 18
4th Shell 4s, 4p, 4d, 4f 2 + 6 + 10 + 14 = 32