The orbital diagram of bromine shows that the 1s subshell has 2 electrons, the 2s subshell has 2 electrons, the 2p subshell has 6 electrons, the 3s subshell has 2 electrons, the 3p subshell has 6 electrons, the 4s subshell has 2 electrons, the 3d subshell has 10 electrons, and the 4p subshell has 5 electrons.

## Steps

Here’s how you can draw the orbital diagram of bromine step by step.

#1 Find electrons of bromine

#2 Write electron configuration of bromine

#3 Draw orbital diagram of bromine

Let’s break down each step in detail.

### Find electrons

The atomic number of bromine represents the total number of electrons of bromine. Since the atomic number of bromine is 35, the total electrons of bromine are 35.

### Write electron configuration

The electron configuration of bromine is 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{5}.

Learn how to find: Bromine electron configuration

Now in the next step, start drawing the orbital diagram for bromine.

### Draw orbital diagram

Before drawing the orbital diagram, you should know the three general rules.

- Aufbau principle – electrons are first filled in lowest energy orbital and then in higher energy orbital
- Pauli exclusion principle – two electrons with the same spin can not occupy the same orbital
- Hund’s rule – each orbital should be first filled with one electron before being paired with a second electron

Also, you should know the number of orbitals in each subshell.

We can calculate the number of orbitals in each subshell using the formula: 2ℓ + 1

Where, ℓ = azimuthal quantum number of the subshell

For s subshell, ℓ = 0

For p subshell, ℓ = 1

For d subshell, ℓ = 2

For f subshell, ℓ = 3

So each s subshell has one orbital, each p subshell has three orbitals, each d subshell has five orbitals, and each f subshell has seven orbitals.

Now start to draw!

As mentioned above, the electron configuration of bromine is 1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{5}. Hence, draw the blank orbital diagram of bromine up to 4p subshell as follows:

In the above orbital diagram, the box represents an orbital. Each orbital has a capacity of two electrons. And the arrows (↑↓) are drawn inside the box to represent electrons.

Now 1s^{2} indicates that the 1s subshell has 2 electrons. So draw two arrows in the 1s box showing two electrons as follows:

2s^{2} indicates that the 2s subshell has 2 electrons. So draw two arrows in the 2s box showing two electrons as follows:

2p^{6} indicates that the 2p subshell has 6 electrons. So draw six arrows in the 2p box showing six electrons as follows:

3s^{2} indicates that the 3s subshell has 2 electrons. So draw two arrows in the 3s box showing two electrons as follows:

3p^{6} indicates that the 3p subshell has 6 electrons. So draw six arrows in the 3p box showing six electrons as follows:

4s^{2} indicates that the 4s subshell has 2 electrons. So draw two arrows in the 4s box showing two electrons as follows:

3d^{10} indicates that the 3d subshell has 10 electrons. So draw ten arrows in the 3d box showing ten electrons as follows:

4p^{5} indicates that the 4p subshell has 5 electrons. So draw five arrows in the 4p box showing five electrons as follows:

That’s it! This is the final orbital diagram of bromine as we have used all 35 electrons.

**Next:** Krypton orbital diagram

## Related

## More topics

- Bromine
- Bromine Bohr model
- Bromine electron configuration
- Bromine protons neutrons electrons
- Bromine valence electrons

## External links

- https://homework.study.com/explanation/show-the-orbital-filling-diagram-for-bromine.html
- https://quizlet.com/explanations/questions/write-the-electron-configuration-and-give-the-orbital-diagram-of-a-bromine-br-atom-z35-94a182f2-a91d9f97-b807-40d2-93f4-453402df4f90
- https://www.chegg.com/homework-help/questions-and-answers/construct-orbital-diagram-bromine-show-full-ground-state-electron-configuration-answer-ban-q47142456
- https://www.coursehero.com/file/p3gkpfh/23-Draw-a-complete-orbital-diagram-for-Bromine-24-Use-the-figure-below-to/

Deep

Learnool.com was founded by Deep Rana, who is a mechanical engineer by profession and a blogger by passion. He has a good conceptual knowledge on different educational topics and he provides the same on this website. He loves to learn something new everyday and believes that the best utilization of free time is developing a new skill.