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  5. Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति

Railways General Science & Technology Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Sample Paper Classification of Elements and Periodicity in Properties Sample Test Paper-15

  • question_answer
    Which of the following pairs of elements is in the same period of the Periodic Table?

    A)  Na, Ca

    B)  Na, CI

    C)  Ca, CI

    D)         Mg, Sb

    Correct Answer:


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