Question

Electron gain enthalpy of x would be equal to

Answer 1

Answer:

Variation in electron gain enthalpy in the period: In the modern periodic table, on moving from left to right across a period, the atomic size of elements decreases and the effective nuclear charge increases. Thus, the force of attraction between the nucleus and added electron increases.

Answer 2

Answer:

ionisation enthalpy of X is correct option

as electron gain enthalpy and ionisation energy are same