Answer
10 electrons in valence orbital
Work Step by Step
Ground state electronic configuration of Cd is $[Kr]4d^{10}5s^{2}$. It loses two electrons to form $Cd^{2+}$ ion with electronic configuration of $[Kr]4d^{10}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.