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| 1. |
The group 15 element having inner electronic configuration as of argon is ______ .(A) phosphorus (Z = 15) (B) antimony (Z = 51) (C) arsenic (Z = 33) (D) nitrogen (Z = 7) |
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Answer» (C) Arsenic (Z = 33) [Ar]3d104s2 4p3 |
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