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Assertion. Cu, Ag and Au lie in Group IIof the periodic table. Hence, their atomci radii are in the order Cu lt Ag lt Au Reason . In any groupof transition elements,the atomicradii increaseas we move down the group. |
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Answer» Solution :Correct A. The atomic RADII are in the order `:` `CU lt AG ~= AU`. Correct R. Ag and Au have same atomic radii due to the EFFECT of lanthanoide contraction. |
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