16) Choose the valence orbital diagram that represents the ground state of Se2-.

Question

Question

Answer 1

Answer #1

Number of electron in Se = 34

Since charge on Se is -2

So, we need to add 2 electrons more

Number of electrons to be arranged = 36

Electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6

Valence shell is outermost shell which is n=4

In valence shell configuration is 4s2 4p6

Answer: E

Answer 2

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