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An oxygen atom has a total of eight elec...

An oxygen atom has a total of eight electrons. The correct set of four quantum numbers for the eighth electron of oxygen is

A

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

B

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

C

`2,1,1,-1//2)`

D

`(2,1,o, or +-1, -1//2)`

Text Solution

Verified by Experts

The correct Answer is:
D
The orbital diagram of oxygen atom is as follows:

The placement of the eighth electron in the subshell is completely orbitary. Thus, it would be equally correct to assign it to `m_(l) =- 1`or `m_(l) = 0` or `m_(l) =+1`.
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Knowledge Check

  • The correct set of four quantum numbers for the outermost electron of sodium (Z = 11) is

    A
    `3,1,0, (1)/(2)`
    B
    `3,1,1,(1)/(2)`
    C
    `3,2,1,(1)/(2)`
    D
    `3,0,0, (1)/(2)`

  • The correct set of four quantum numbers for the valence electron of rubidium (Z=37) is

    A
    `n=5, l=0, m=0, m_(s)=+1/2`
    B
    `n=5, l=1, m=0, m_(s)=+1/2`
    C
    `n=5, l=1,m=1,m_(2)=+1/2`
    D
    `n=6,l=0,m=0,m_(s)=+1/2`

  • The correct set of quantum numbers for the unpaired electron of Cu atom is :

    A
    n = 3, l = 2, m = –2, s = +1/2
    B
    n = 3, l = 2, m = +2, s = –1/2
    C
    n = 4, l = 0, m = 0, s = +1/2
    D
    n = 4, l = 1, m = +1, s = +1/2

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    The correct set of quantum numbers for the unpaired electron of chlorine atom is :

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