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NEET Sample Paper NEET Sample Test Paper-67

  • question_answer
    An element has electronic configuration? \[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{4}}\]. Predict their period, group and block.

    A) \[Period = {{3}^{rd}}, block = p, group =16\]

    B) \[Period = {{5}^{th}}, block = s, group = 1\]

    C) \[Period = {{3}^{rd}}, block = p, group = 10\]

    D) \[Period={{4}^{th}}, block = d, group = 12\]

    Correct Answer: A

    Solution :

    By observing principal quantum number (n), orbital (s, p, d, f) and equating no. of \[{{e}^{-}}\]s we  are able to find the period, block and group of element in periodic table.


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