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

Tin has 50 protons, 69 neutrons and 50 electrons.

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

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

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

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Tin

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 tin.

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

#1 Number of Protons in Tin

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 Tin (Sn).

So from the above periodic table, you can see that the atomic number of tin is 50.

As the atomic number of tin is 50, it has a total of 50 protons in its nucleus.

Thus, the number of protons in Tin is 50.

#2 Number of Neutrons in Tin

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

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

The atomic mass of tin is 118.71 u (which you can round it to 119). [2]

So from this atomic mass (i.e 119), you have to subtract its atomic number (i.e 50).

So you will get 119 – 50 = 69.

Thus, the number of neutrons in Tin is 69.

#3 Number of Electrons in Tin

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

Here, the tin atom is a neutral atom.

So the number of electrons in tin 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 tin is 50.

Thus, the number of electrons in Tin is 50.

Summary

Number of Protons in Tin

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Tin = Atomic number of Tin = 50

Number of Neutrons in Tin

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Tin = Atomic mass of Tin – Atomic number of Tin = 119 – 50 = 69

Number of Electrons in Tin

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Tin = Atomic number of Tin = 50

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

Check out related topics for more practice;
Iodine protons neutrons electrons
Xenon protons neutrons electrons
Thallium protons neutrons electrons