You visited us 1 times! Enjoying our articles? Unlock Full Access!

Multi-Electron Configurations and Orbital Diagrams

Which one is ...

Question

Which one is the correct set of quantum numbers for the eighth electrons that fills the orbitals in an atom of oxygen?

n = 2, l = 1, m l = 1, m s = 1 / 2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

n = 2, l = - 1, m l = + 1, m s = 1 / 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

n = 2, l = 1, m l = + 0, m s = + 1 / 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

n = 2, l = 0, m l = - 1, m s = + 1 / 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

n = 1, l = 1, m l = + 1, m s = - 1 / 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $n = 2, l = 1, m l = 1, m s = 1 / 2$
The electronic configuration of $O_{8}$ is:
$1 s^{2} 2 s^{2} 2 p_{x}^{2} 2 p_{y}^{1} 2 p_{z}^{1}$ .
The eighth electron is located in the $2 p_{x}$ orbital. The correct set of quantum numbers is $n = 2, l = 1, m_{l} = + 1, m_{s} = + 1 / 2$

Suggest Corrections

Similar questions

n = 4, l = 0, m_{l} = 0, m_{s} = + \frac{1}{2}

n = 3, l = 1, m_{l} = 1, m_{s} = - \frac{1}{2}

n = 3, l = 2, m_{l} = 0, m_{s} = + \frac{1}{2}

n = 3, l = 0, m_{l} = 0, m_{s} = - \frac{1}{2}

n = 4, l = 2, m_{l} = - 2, m_{s} = - 1 / 2

n = 3, l = 2, m_{l} = 1, m_{s} = + 1 / 2

n = 4, l = 1, m_{l} = 0, m_{s} = + 1 / 2

n = 3, l = 1, m_{l} = 1, m_{s} = - 1 / 2

Question 18

Out of the following pairs of electrons, identify the pairs of electrons present in degenerate orbitals.

(a) (i) $n = 3, l = 2, m_{l} = - 2, m_{s} = - \frac{1}{2}$ (ii) $n = 3, l = 2, m_{l} = - 1, m_{s} = - \frac{1}{2}$

(b) (i) $n = 3, l = 1, m_{l} = 1, m_{s} = + \frac{1}{2}$ (ii) $n = 3, l = 2, m_{l} = - 1, m_{s} = + \frac{1}{2}$

(d) (i) $n = 3, l = 2, m_{l} = + 2, m_{s} = - \frac{1}{2}$ (ii) $n = 3, l = 2, m_{l} = + 2, m_{s} = + \frac{1}{2}$

n = 0

l = 0

m_{1} = 0

m_{s} = + 1 / 2

n = 1

l = 0

m_{1} = 0

m_{s} = - 1 / 2

n = 1

l = 1

m_{1} = 0

m_{s} = + 1 / 2

n = 2

l = 1

m_{1} = 0

m_{s} = - 1 / 2

n = 2

l = 3

m_{1} = - 3

m_{s} = + 1 / 2

n = 3

l = 1

m_{1} = 0

m_{s} = + 1 / 2

n = 4, l = 2, m_{1} = - 2, m_{s} = - 1 / 2

n = 3, l = 2, m_{1} = 1, m_{s} = + 1 / 2

n = 4, l = 1, m_{1} = 0, m_{s} = + 1 / 2

n = 3, l = 2, m_{1} = - 2, m_{s} = - 1 / 2

n = 3, l = 1, m_{1} = - 1, m_{s} = + 1 / 2

n = 4, l = 1, m_{1} = 0, m_{s} = + 1 / 2

Join BYJU'S Learning Program