RAJASTHAN ­ PET Rajasthan PET Solved Paper-2005

  • question_answer
    The atomic number of a element is 33. It belongs to

    A)  third period and IVA group

    B)  fourth period and IIIA group

    C)  fourth period and VA group

    D)  third period and VA group

    Correct Answer: C

    Solution :

     Atomic number =33 Electronic configuration\[=[Ar]\text{ }3{{d}^{10}},4{{s}^{2}}4{{p}^{3}}\] Hence, it belongs to fourth period and VA group.


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