1.

Which electronic configuration repersents a transition element ?

Answer»

`1s^2,2s^2 2p^6,3s^2 3p^6 3d^10, 4s^2 4p^6`
`1s^2,2s^2 2p^6,3s^2 3p^6 3d^10, 4s^2 4p^1`
`1s^2,2s^2 2p^6,3s^2 3p^6 3d^2, 4s^2 `
`1s^2,2s^2 2p^6,3s^2 3p^6 , 4s^2 `

ANSWER :C


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