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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
    Consider the following statements.
    1. In Modem Periodic Table, the number of periods is 7.
    2. In Modem Periodic Table, the number of groups is 18.
    3. The long form of Periodic Table was developed by Range and Werner.
    Which of the following is/are correct?

    A)  Only 1 

    B)  2 and 3

    C)  1 and 2

    D)  1, 2 and 3

    Correct Answer:


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