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

Francium has 87 protons, 136 neutrons and 87 electrons.

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

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

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

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Francium

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 francium.

#1 Number of Protons in Francium

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 Francium (F).

So from the above periodic table, you can see that the atomic number of francium is 87.

As the atomic number of francium is 87, it has a total of 87 protons in its nucleus.

Thus, the number of protons in Francium is 87.

#2 Number of Neutrons in Francium

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

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

The atomic mass of francium is 223 u. ^[2]

So from this atomic mass (i.e 223), you have to subtract its atomic number (i.e 87).

So you will get 223 – 87 = 136.

Thus, the number of neutrons in Francium is 136.

#3 Number of Electrons in Francium

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

Here, the francium atom is a neutral atom.

So the number of electrons in francium 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 francium is 87.

Thus, the number of electrons in Francium is 87.

Summary

Number of Protons in Francium

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Francium = Atomic number of Francium = 87

Number of Neutrons in Francium

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Francium = Atomic mass of Francium – Atomic number of Francium = 223 – 87 = 136

Number of Electrons in Francium

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Francium = Atomic number of Francium = 87

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

Check out related topics for more practice;
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