Yttrium Bohr model

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Yttrium Bohr model
Yttrium Bohr model

The Bohr model of yttrium contains a nucleus having 39 protons and 50 neutrons in the center, and around this nucleus, there are five electron shells containing 39 electrons.

Steps

Here’s how you can draw the Bohr model of yttrium step by step.

#1 Find protons, neutrons, and electrons of yttrium atom
#2 Draw nucleus of yttrium atom
#3 Draw 1st electron shell
#4 Draw 2nd electron shell
#5 Draw 3rd electron shell
#6 Draw 4th electron shell
#7 Draw 5th electron shell

Let’s break down each step in detail.

#1 Find protons, neutrons, and electrons of yttrium atom

Yttrium has 39 protons, 50 neutrons, and 39 electrons.

Yttrium protons

  • Protons = atomic number

From the periodic table, find the atomic number of yttrium.

Yttrium location on periodic table

The atomic number of yttrium is 39. Hence, yttrium has a total of 39 protons.

Yttrium neutrons

  • Neutrons = atomic mass – atomic number
Yttrium neutrons
Yttrium neutrons

The atomic mass of yttrium is 88.90585, so we’ll take the roundup value as 89. And the atomic number of yttrium is 39.

Subtract the atomic number (39) from the atomic mass (89). Hence, yttrium has a total of 89 – 39 = 50 neutrons.

Yttrium electrons

  • Electrons = atomic number
Yttrium electrons
Yttrium electrons

The atomic number of yttrium is 39. Hence, yttrium has a total of 39 electrons.

#2 Draw nucleus of yttrium atom

The nucleus of a yttrium atom contains 39 protons and 50 neutrons. So draw the nucleus of yttrium atom as follows:

Yttrium nucleus
Yttrium nucleus

Now in the next step, draw the 1st electron shell and start marking electrons.

#3 Draw 1st electron shell

Remember that we have a total of 39 electrons.

The 1st electron shell (containing s subshell) can hold up to a maximum of 2 electrons. So draw the 1st electron shell as follows:

Yttrium shell 1
Yttrium 1st electron shell drawn

In the above image, 1 represents the 1st electron shell that contains 1s subshell. And the green color represents the number of electrons in that subshell. This means that the 1st electron shell has a total of 2 electrons.

Since we have already used 2 electrons in the 1st electron shell, now we have 39 – 2 = 37 electrons left. So in the next step, we have to draw the 2nd electron shell.

#4 Draw 2nd electron shell

The 2nd electron shell (containing s subshell and p subshell) can hold up to a maximum of 8 electrons. So draw the 2nd electron shell as follows:

Yttrium shell 2
Yttrium 2nd electron shell drawn

In the above image, 2 represents the 2nd electron shell that contains 2s and 2p subshells. And the green and orange color represents the number of electrons in that subshell. This means that the 2nd electron shell has a total of 8 electrons.

Now we have already used 10 electrons in 1st and 2nd electron shells, so we have 39 – 10 = 29 electrons left. So in the next step, we have to draw the 3rd electron shell.

#5 Draw 3rd electron shell

The 3rd electron shell (containing s subshell, p subshell, and d subshell) can hold up to a maximum of 18 electrons. So draw the 3rd electron shell as follows:

Yttrium shell 3
Yttrium 3rd electron shell drawn

In the above image, 3 represents the 3rd electron shell that contains 3s, 3p, and 3d subshells. And the green, orange, and pink color represents the number of electrons in that subshell. This means that the 3rd electron shell has a total of 18 electrons.

Now we have already used 28 electrons in 1st, 2nd, and 3rd electron shells, so we have 39 – 28 = 11 electrons left. So in the next step, we have to draw the 4th electron shell.

#6 Draw 4th electron shell

The 4th electron shell (containing s subshell, p subshell, d subshell, and f subshell) can hold up to a maximum of 32 electrons. So draw the 4th electron shell as follows:

Yttrium shell 4
Yttrium 4th electron shell drawn

In the above image, 4 represents the 4th electron shell that contains 4s, 4p, and 4d subshells. And the green, orange, and pink color represents the number of electrons in that subshell. This means that the 4th electron shell has a total of 9 electrons.

The 4th electron shell contains only 4s, 4p, and 4d subshells, and not a 4f subshell. This is because according to the aufbau principle, the 5s subshell is filled first and then 4d, 5p, 6s… and so on.

Now we have already used 37 electrons in 1st, 2nd, 3rd, and 4th electron shells, so we have 39 – 37 = 2 electrons left. So in the next step, we have to draw the 5th electron shell.

#7 Draw 5th electron shell

The 5th electron shell can hold up to a maximum of 50 electrons. So draw the 5th electron shell as follows:

Yttrium shell 5
Yttrium 5th electron shell drawn

In the above image, 5 represents the 5th electron shell that contains 5s subshell. And the green color represents the number of electrons in that subshell. This means that the 5th electron shell has a total of 2 electrons.

That’s it! This is the final Bohr model of yttrium atom as we have used all 39 electrons: 2 electrons in the 1st electron shell, 8 electrons in the 2nd electron shell, 18 electrons in the 3rd electron shell, 9 electrons in the 4th electron shell, and 2 electrons in the 5th electron shell.

Next: Zirconium Bohr model

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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.

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