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Elements X, Y and Z have atomic numbers ...

Elements X, Y and Z have atomic numbers 19,37 and 55 respectivley. Which of the following statements is/are true about them ?

A

Their ionization potential would increase with increasing atomic number

B

Y would have an ionization potential between those of X and Z

C

Z would have the highest ionization potential

D

Y would have the highest ionization potential.

Text Solution

Verified by Experts

The correct Answer is:
B
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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