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The ionisation potential of Au (79) and Ag (47) are almost same. Explain.

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The ionisation potential of Au (79) and Ag (47) are almost same. Explain.

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Size of Au (79) and Ag (47) is same but not have same ionisation enthalpy because Zeff of Au is more due to poor screening effect of f-orbitals so ionisation enthalpy of Au (79) is more than Ag (47).

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