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How many d-electrons are in the outer shell of metals like Cadmium (this is counting the 4d electrons)?

First I know similar questions have been asked about counting d-electrons.

However, my question is about the electrons in the 4d orbital. For example if I have CdS. The cadmium has a charge of +2. So does this affect the number of d-electrons?

Would it be 10 d-electrons as the 2 extra have been removed from the 5s orbital?

Also is the electron configuration of Cd in CdS:

[Kr] 5s2 4d10

or is it:

[Kr] 4d10