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Which element comes in 5th period of chalcogen group ? |
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Answer» Se `to (A)` Se and (B) Te are chalcogens `Se : (Ar) 3d^(10) 4s^(2) 4p^(4), therefore 4th` PERIOD `Te : (Kr) 4d^(10) 5s^(2) 5P^(4), therefore 5^(th)` period. |
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