# 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?

Silver atom(atomic no. = 47) has completely filled d-orbital in its ground state(4$d^{10}$). 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.