Question

How does ionization enthalpy varies down the group

Answer 1

Explanation

Ionization energies decrease DOWN a Group, but increase across a PERIOD (from left to right). ... On the other hand, down a Group, the increased nuclear charge is effectively shielded by the filled electronic shells. Nucleus/valence electron attraction becomes attenuated, and ionization energies decrease.

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Answer 2

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❤⭐IONISATION ENTHALPY ⭐❤

• The minimum energy required to removed an electron from the outer mist valence shell from an isolated , neutral , gaseous atom is called ionisation enthalpy.

❤⭐IN GROUPS ⭐❤

• In groups , from top to bottom , the IE value decreases .
• Hence , the effective nuclear attraction on outer electrons decreases.
• Thus IE value decreases fron top to bottom in groups.