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DINESH PUBLICATION-STRUCTURE OF ATOM -N.C.E.R.T End Exercise
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Play - Compare all the proposed models of an atom given in this chapter.
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Play - Define valency by taking the examples of silicon and oxygen.
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Play - Na^(+) has completely filled K and L shells. Explain.
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Playing Now - Isotopes of an element have : (a) the same physical properties (b)...
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Play - Number of valence electrons in Cl^(– ) ion are:
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