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Question
Q216) If each orbital can hold a maximum of 3 electrons. The number of elements in 2nd period of periodic table



SOLUTION

For 2nd period electronic configuration = 2s2, 2p6
If each orbital have 3e– then electronic configuration = 2s3, 2px3, 2py3, 2pz3
Total 12 eelectrons will present, and one electron increases when we go from left to right across periodic table

Answer:(d)