ionic radius#!#ionisation energy

Group 15|Electronic Configuration|Atomic And Ionic Radii|Ionisation Energy |Electronegativity|Metallic Character|Oxidation States |Quiz|Summary

Group 15|Electronic Configuration|Atomic And Ionic Radii|Ionisation Energy |Electronegativity|Metallic Character|Oxidation States |Quiz|Summary

Group 15|Electronic Configuration|Atomic And Ionic Radii|Ionisation Energy |Electronegativity|Metallic Character|Oxidation States |Quiz|Summary

Define ionisation energy.

Assertion: The first ionisation energy of aluminium is lower than that of magnesium. Reason: The ionic radius of aluminium is smaller than that of magnesium.

First ionisation energy of copper is higher than those of alkali metals, while second and third ionisation energies are lower. Explain.

What will be the order of first ionisation energy?

The minimum amount of energy which is required to remove an outermost electron from any isolated neutral gaseous atom is known as first ionisation energy. These are the following factors which effect ionisation energy. (i) Ionisation energy prop (1)/("Principal quantum number") (ii) Ionisation energy prop Z_(eff) (iii) If orbitals are fully filled or half filled so stability will be more and ionisation energy will be high. (iv) If penultimate electron will effectively shield the nucles, ionisation energy will be less and vice versa. Which of the following has maximum Ist ionisation energy?