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Gadolinium has a low value of third ionisation enthalpy because of

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Gadolinium has a low value of third ionisation enthalpy because of

(1) high exchange enthalpy

(2) high electronegativity

(3) high basic character

(4) small size

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1 Answer

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Best answer

(1) high exchange enthalpy

After losing 5d electron 4f has maximum exchange energy so Gd has low value of Third lonisation energy

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