Assertion: Helium has the highest value of ionisation energy among all known elements.
Reason: Helium has the highest value of elelctron affinity among all known elements.

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

Among all the elements which one has the highest value of electronegativity?

Assertion: helium atom has highest ionisation energy among all the element. Reason: helium is smallest atom among all the elements.

Which of the following element has the highest value of electron affinity?