Question

How to identify highest ionisation energy in element?

Answer 1

↪Ionisation Energy↩

● As we move from left - right in a period Z-effective increases So ionisation energy also increases.

● on moving down the group as number of shell increases , atomic radius increases hence ionization energy decreases.

● If particular atom have stable configuration (full filled or half filled stable configuration) then it has more ionization energy as compared to two other adjacent atoms.

Answer 2

Answer:

Find the elements' placements on the periodic table.

Explanation:

Remember that elements near the top of the periodic table and further to the right of the periodic table have higher ionization energies.