Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respectively . Then the correct statements (s) is / areA. Their ionisation potential would increase with the increasing atomic numberB. Y would have an ionisation potential in between those of X and ZC. Z would have the highest ionisation potentialD. Y would have the highest ionisation potential

Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respecti

1.	Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respectively . Then the correct statements (s) is / areA. Their ionisation potential would increase with the increasing atomic numberB. Y would have an ionisation potential in between those of X and ZC. Z would have the highest ionisation potentialD. Y would have the highest ionisation potential
Answer» Correct Answer - B `X rarr K, Y rarr Rb, Z rarr Cs`

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