Which one of the following represents most stable configuration of three electrons for ground state of an element in group VA
Correct answer: B. np1x, np1Y, np1Z
- A. np2x, np1Y, np0Z
- B. np1x, np1Y, np1Z
- C. np2x, np0Y, np1Z
- D. np0x, np1Y, np2Z
Explanation
Half-filled and completely filled arbitas are relatively more stable.Option B suggests that each of the three electrons is in a different orbital (np1x, np1Y, np1Z). This arrangement follows Hund's rule and is a valid ground state configuration for three electrons in group VA.
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