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Question

Chemistry Question on Modern Periodic Law And The Present Form Of The Periodic Table

The correct order of variation of first ionisation enthalpies is:

A

NeLi>K<Cs

B

Xe<Li<K<Cs<Ne

C

Cs>K>Li>Xe>Ne

D

Li>K>Cs>Ne>Xe

E

Ne>Xe>Li>K>Cs

Answer

Ne>Xe>Li>K>Cs

Explanation

Solution

The correct answer is (E):Ne>Xe>Li>K>Cs