InterviewSolution
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InterviewSolution
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The electronic configurations of three elements. X is 2, 6; Y is 2, 8, 7; Z is 2, 8,1.In each ease given below state whether the bonding is ionic or covalent and give the formula of molecules of the compound formed, a) Between two atoms of X.b) Between the atom X and atom Z.c) Between the atom Y and atom Z. |
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Answer» a) As we move from left to right in a period non-metallic character increases. So Z is a metal and remaining two are non-metals. Therefore between two atoms of X, there would be covalent bond. The formula of compound is X2. b) X is a non-metal and Z is a metal. So between these two atoms, there would be an ionic bond. The valency of X is 2 and the valency of Z is 1. So the formula of compound is Z2X. c) Y is also non-metal and we know Z is metal. The valency of Y is 1. So the compound formed is ZY. |
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