Elements X, Y and Z have atomic numbers 19,37 and 55 respectivley. Whi – InterviewSolution

1.	Elements X, Y and Z have atomic numbers 19,37 and 55 respectivley. Which of the following statements is/are true about them ?
Answer» Their ionization POTENTIAL would INCREASE with INCREASING atomic number Y would have an ionization potential between those of X and Z Z would have the highest ionization potential Y would have the highest ionization potential. Solution :Elements X, Y and Z with atomic numbers 19, 37, 55 lie in group 1 (alkali metals). WITHIN a group, IE decrease from top to bottom. Therefore, IE of Y could be between those of X and Z.

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