Xenon Protons Neutrons Electrons (And How to Find them?)

Xenon has 54 protons, 77 neutrons and 54 electrons.

But how will you find the number of protons, neutrons and electrons in Xenon (Xe)?

Well, it is very easy to find the protons, neutrons and electrons of xenon atom.

Here I have given a very simple method for finding the protons, neutrons and electrons of xenon atom.

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Xenon

How to find protons?

• The number of protons can be found by knowing the atomic number of that atom. ^[1]

How to find neutrons?

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.

How to find electrons?

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.

Let’s calculate the number of protons, neutrons and electrons in xenon.

#1 Number of Protons in Xenon

If you have a periodic table with you, then most of the answers are in front of you.

You can see the elements, their atomic number and their atomic mass from the periodic table.

Now here our element is Xenon (Xe).

So from the above periodic table, you can see that the atomic number of xenon is 54.

As the atomic number of xenon is 54, it has a total of 54 protons in its nucleus.

Thus, the number of protons in Xenon is 54.

#2 Number of Neutrons in Xenon

In order to find the number of neutrons of xenon atom, you should know its atomic mass first.

The number of neutrons in xenon can be obtained by subtracting the atomic number from its atomic mass.

The atomic mass of xenon is 131.29 u (which you can round it to 131). ^[2]

So from this atomic mass (i.e 131), you have to subtract its atomic number (i.e 54).

So you will get 131 – 54 = 77.

Thus, the number of neutrons in Xenon is 77.

#3 Number of Electrons in Xenon

For a neutral atom, the number of electrons and the number of protons are the same.

Here, the xenon atom is a neutral atom.

So the number of electrons in xenon is equal to its number of protons (which is also equal to its atomic number).

In the beginning, we have found that the number of protons in xenon is 54.

Thus, the number of electrons in Xenon is 54.

Summary

Number of Protons in Xenon

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Xenon = Atomic number of Xenon = 54

Number of Neutrons in Xenon

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Xenon = Atomic mass of Xenon – Atomic number of Xenon = 131 – 54 = 77

Number of Electrons in Xenon

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Xenon = Atomic number of Xenon = 54

I hope you have understood the simple method for finding the protons, neutrons and electrons of xenon atom.

Check out related topics for more practice;
Thallium protons neutrons electrons
Lead protons neutrons electrons
Bismuth protons neutrons electrons
Radon protons neutrons electrons
Scandium protons neutrons electrons