If the quantum numbers for the 5th electron in carbon atoms are 2,1,1,+1/2, then for the 6th electron, these values would be

Question

If the quantum numbers for the 5th electron in carbon atoms are 2,1,1,+1/2, then for the 6th electron, these values would be (A)  2,1,0,-(1/2)  (B)  2,0,1,+(1/2)  (C)  2,1,1,-(1/2)  (D)  2,1,-1,+(1/2)

Tardigrade Admin · Accepted Answer

The atomic number of carbon is 6 and its electronic configuration is 1s2,2s2,2p2 . Thus, 5th electron enters in 2px and hence, 6th will go to 2py with spin in the same direction.

Q. If the quantum numbers for the 5th electron in carbon atoms are $2, 1, 1, + 1/2,$ then for the 6th electron, these values would be

$2, 1, 0, - \frac{1}{2}$

$2, 0, 1, + \frac{1}{2}$

$2, 1, 1, - \frac{1}{2}$

$2, 1, - 1, + \frac{1}{2}$

The atomic number of carbon is 6 and its electronic configuration is $1 s^{2}, 2 s^{2}, 2 p^{2}$ .
Thus, 5th electron enters in $2 p_{x}$ and hence, 6th will go to $2 p_{y}$ with spin in the same direction.

Q. If the quantum numbers for the 5th electron in carbon atoms are 2,1,1,+1/2, then for the 6th electron, these values would be

2,1,0,−21​

2,0,1,+21​

2,1,1,−21​

2,1,−1,+21​