What is the atomic number of the element...

What is the atomic number of the element which has `3d^(6)` as its outermost configuration?

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The correct Answer is:

`3d^(6)` configuration means `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(2) 3d^(6)`

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