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

Krypton has 36 protons, 48 neutrons and 36 electrons.

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

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

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

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Krypton

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 krypton.

If you don’t want to read, then you can also watch this video.

#1 Number of Protons in Krypton

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 Krypton (Kr).

So from the above periodic table, you can see that the atomic number of krypton is 36.

As the atomic number of krypton is 36, it has a total of 36 protons in its nucleus.

Thus, the number of protons in Krypton is 36.

#2 Number of Neutrons in Krypton

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

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

The atomic mass of krypton is 83.798 u (which you can round it to 84). ^[2]

So from this atomic mass (i.e 84), you have to subtract its atomic number (i.e 36).

So you will get 84 – 36 = 48.

Thus, the number of neutrons in Krypton is 48.

#3 Number of Electrons in Krypton

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

Here, the krypton atom is a neutral atom.

So the number of electrons in krypton 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 krypton is 36.

Thus, the number of electrons in Krypton is 36.

Summary

Number of Protons in Krypton

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Krypton = Atomic number of Krypton = 36

Number of Neutrons in Krypton

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Krypton = Atomic mass of Krypton – Atomic number of Krypton = 84 – 36 = 48

Number of Electrons in Krypton

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Krypton = Atomic number of Krypton = 36

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

Check out related topics for more practice;
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