Beryllium orbital diagram

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Beryllium orbital diagram
Beryllium orbital diagram

The orbital diagram of beryllium shows that the 1s subshell has 2 electrons, and the 2s subshell has 2 electrons.

Steps

Find electrons

The atomic number of beryllium represents the total number of electrons of beryllium. Since the atomic number of beryllium is 4, the total electrons of beryllium are 4.

Write electron configuration

The electron configuration of beryllium is 1s2 2s2.

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

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 beryllium is 1s2 2s2. Hence, draw the blank orbital diagram of beryllium up to 2s subshell as follows:

Blank orbital diagram of beryllium

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 1s2 indicates that the 1s subshell has 2 electrons. So draw two arrows in the 1s box showing two electrons as follows:

Two arrows drawn in 1s box represent 1s2

2s2 indicates that the 2s subshell has 2 electrons. So draw two arrows in the 2s box showing two electrons as follows:

Two arrows drawn in 2s box represent 2s2

That’s it! This is the final orbital diagram of beryllium as we have used all 4 electrons.

Next: Sodium orbital diagram

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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.

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