1.

The general valence shell electronic configuration of actinoids is

Answer»

`[XE] 4F^(2-14)5D^(0-2) 6S^(2)`
`[Rn] 4f^(2-14) 5d^(0-2)6s^(2)`
`[Rn] 4f^(2-14) 5d^(0-2)7s^(2)`
`[Rn] 4f^(0-7) 5d^(0-1)6s^(2)`

Solution :`[Rn] 4f^(2-14) 5d^(0-2)7s^(2)`


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