1.

The most accepted electronic configuration of f-block element is

Answer»

`(n-2) s^(2), p^(6) , d^(10) , f(0-14), (n-1) s^(2), p^(6) d^(0-1) , NS^(0-2)`
`(n-2) s ^(2), p^(6), d^(10) , f^(1-14), (n-1) s ^(2),p^(6)d ^(0-1) , ns^(2)`
`(n-2) s^(2), p ^(6), d ^(10),f ^(0-14) , (n-1) s^(2), p ^(6)d^(1) , ns^(0-1)`
`(n-2) s ^(2), p^(6) , d^(10) , f^(0-14) , (n-1) s^(2), p ^(6)d^(1), ns^(2) `

Answer :B


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