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The correct set of possible quantum num...

The correct set of possible quantum number number (n,1,m,s,) for last electron entering entering in Lanthanum `(Z=57)` is

A

`5,2,-1,+(1)/(2)`

B

`5,2,-1,-(1)/(2)`

C

`5,2,0,-(1)/(2)`

D

`5,2,+1,-(1)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A,B,C,D
La: `[Xe]5d^(1)4s^(2)` `therefore` "last electron is entering 'd' orbital"
`therefore n=5,1=2` &"m could br `-2,-1,0+1,+2`" "`s=+(1)/(2) or _(1)/(2)`
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Knowledge Check

  • Select the correct set (s) of quantum numbers

    A
    `n=3, l=0, m_(l)=-1`
    B
    `n=3, l=3, m_(l)=-2`
    C
    `n=3, l=2, m_(l)=-2`
    D
    `n=3, l=1, m_(l)=0`

  • The correct set of quantum numbers for 4d-electrons is

    A
    `4,3,2,+1//2`
    B
    4,2,1,0
    C
    `4,3,-2,+1//2`
    D
    `4,2,1,-1//2`

  • which of the following is correct set of quantum numbers for the last electron entering in Fe ?

    A
    `{:( n,l,m,s),(4,0,0,+(1)/(2)):}`
    B
    `{:( n,l,m,s),(3,2,-1,+(1)/(2)):}`
    C
    `{:( n,l,m,s),(3,2,-2,-(1)/(2)):}`
    D
    `{:( n,l,m,s),(3,2,-3,-(1)/(2)):}`
    • BANSAL-ATOMIC STRUCTURE-MULTIPLE CORRECT CHOICE TYPE
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    11. Choose the incorrect statement (s) :

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