Question

Why ionization enthalapy increases from left to right?

Answer 1

Answer:

Explanation:

DEFINITION: it is the minimum amount of energy required to eject an electron form the valence shell of an isolated gaseous neutral atom in it's ground state.

EXPLANATION;   so as we move left to right (PERIOD) the electro negetivity increases . Therefore they won't give electrons easily ,and you need more energy which is nothing but IONIZATION ENTHALPY.