InterviewSolution
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InterviewSolution
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What is the number of valence electrons in the atom of an element A having atomic number 17 ?Name the valence shell of this atom. |
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Answer» Solution :The electronic configuration of element A is `{:(K,L,M),(2,8,7):}` Therefore, the M SHELL is the outermost shell or the valence shell. NUMBER of valence ELECTRONS =number of electrons in the outermost shell=7. |
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