Question

How does ionisation enthalpy vary across the period?

Answer 1

Hey mate ^_^

=======
Answer:
=======

As we move across a period atomic size decreases and nuclear charge increases. Therefore, the electron is held tightly and it is difficult to remove. Therefore, ionisation enthalpy increases across a period.

#Be Brainly❤️

Answer 2

Ionization enthlapy varies opposite to the variation of atomic radii. Thus, one can easily predict the variation . The variation is that ionization enthalpy increases along a period whereas decreases down a group.

But the trend is not always followed. There are certain exceptions present in the periodic table ...which can be learned by an exhaustive study of the modern periodic table and its trends...

THANK YOU...!