Subjective Questions on Atomic number of a few elements are given below 10 20 7 14 5 marks a Identify the elements........... for 10th Standard Preparation

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Subjective Questions

Atomic number of a few elements are given below 10 20 7 14 5 marks a Identify the elements...........

Chemistry Chapter - 5
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    Atomic number of a few elements are given below 10, 20, 7, 14   (5 marks)

    (a) Identify the elements

    (b) Identify the Group number of these elements in the Periodic Table

    (c) Identify the Periods of these elements in the Periodic Table

    (d) What would be the electronic configuration for each of these elements?

    (e) Determine the valency of these elements

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