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8.1     Silver atom has completely filled d-orbitals (4d^{10}) in its ground state. How can you say that it is a transition element?

 

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Silver atom(atomic no. = 47) has completely filled d-orbital in its ground state(4d^{10}). However, in +2 oxidation state, the electron of d-orbitals get removed. As a result, the d-orbital become incomplete(d^{9}) . Hence it is a transition element.

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