given below are the melting points and the atomic radii of three elements X,Y and Z each having n electrons in the outermost shell of their atoms 1> Will the valencies of the elements be the same of different and why? 2> WHich element will have highest atomic number and why? 3> Arrange the elements in increasing order of their metallic character
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bandesgirl54:
element X has melting point 1.34, atomis radius 1.20. Element Y has melting point 1.54, atomic radius 1.31. Element Z has melting point 1.96 and atomic radius 1.36. Now plzzz help me coz i have the same question..
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Answer:(a) Given the each element has an e − in the outermost shell. ∵ They have same number of e − in the outermost shell. ∴ , they belong to the same group.
(b) Element with highest atomic radii will have highest atomic no. i.e. Z.
(c) As we have inferred above the atomic radii is in the order Z>Y>X. So, metallic character order is also the same, i.e. Z>Y>X
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