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Q.

If the ionization potential of Na is 5.48 eV. Potassium is expected to have a value of

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a

5.68 eV

b

5.48 eV

c

8.4 eV

d

4.34 eV

answer is B.

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Detailed Solution

K has a lower ionisation potential than Na because ionisation potential decreases with group size. Potassium is expected to have a value of 4.34 eV.

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