Question

Assertion: Helium has the highest value of ionisation energy among all the element
known
Reason: Helium has the highest value of electron affinity among all the element
known​

Answer 1

Answer:

  Assertion is true but Reason is false    

Explanation:

Helium contains fully filled 1 s2 orbital which has more penetrating effect and is very close to the nucleus and hence has highest value of ionisation energy.

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