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Three elements X , Y and Z have atomic n...

Three elements X , Y and Z have atomic numbers 19 , 37 and 55 respectively . Then the correct statements (s) is / are

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
Element X,Y and Z with atomic numbers 19,37,55 lie in group 1(alkali metals).Within a group,IE decreases from top to bottom.Therefore,IE of y could be between those X and Z.
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