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  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank Atomic Structure Summative Subjective Problems

  • question_answer
    What is the formula of the compound formed by P and Q if the number of electrons present in their outermost shells (M-shell) is 3 and 7 respectively?

    Answer:

    The no. of electrons in outermost shell of \[P=3\] \[\therefore \]Valency of\[P=3\] The no. of electrons in outermost shell of \[Q=7\] \[\therefore \]Valency of \[Q=1\] Criss-crossing the valencies, we get\[P{{Q}_{3}}\]


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