Which of following pairs has higher negative electron gain enthalpy?
O,`O^-`

Which of the following will have the most negative electron gain enthalpy and which the east negative? (P, S, CI, F). Explain your answer.

Which of the following pairs has the same size ?

Which of the following pairs of elements would have a more negative electron gain enthalpy? i) O or N ii) F or Cl

Which of the following has a negative temperature coefficient?

The negative electron gain enthalpy of F is less/more than Cl.

Which of the following elements has the maximum electron affinity ?

Give reasons for the following: Chlorine has higher electron gain enthalpy than fluorine.

Which of the following has highest ionisation enthalpy? P , N , As , Sb .