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JEE Main & Advanced Chemistry Chemical Bonding and Molecular Structure / रासायनिक आबंधन एवं आणविक संरचना Question Bank Covalent bonding

  • question_answer
    If the atomic number of element \[X\] is 7, the best electron dot symbol for the element is             [NCERT 1973; CPMT 2003]

    A)                 \[X\,\,.\]             

    B)                 \[.\,\,X\,\,.\]

    C)                 \[.\,\,\underset{.}{\overset{.}{\mathop{X}}}\,\,\,:\]      

    D)                 \[:\,\,\underset{.\,.}{\overset{.\,.}{\mathop{X}}}\,\,\,.\]

    Correct Answer: C

    Solution :

                    Element ?X? has atomic no. 7 so its electronic configuration will be 2, 5. So its electron dot symbol would be \[:\underset{.}{\mathop{\overset{.}{\mathop{X}}\,}}\,.\]


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