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

Osmium has 76 protons, 114 neutrons and 76 electrons.

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

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

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

Let’s dive right into it!

Finding the Protons, Neutrons and Electrons in Osmium

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 osmium.

#1 Number of Protons in Osmium

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 Osmium (Os).

So from the above periodic table, you can see that the atomic number of osmium is 76.

As the atomic number of osmium is 76, it has a total of 76 protons in its nucleus.

Thus, the number of protons in Osmium is 76.

#2 Number of Neutrons in Osmium

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

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

The atomic mass of osmium is 190.23 u (which you can round it to 190). ^[2]

So from this atomic mass (i.e 190), you have to subtract its atomic number (i.e 76).

So you will get 190 – 76 = 114.

Thus, the number of neutrons in Osmium is 114.

#3 Number of Electrons in Osmium

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

Here, the osmium atom is a neutral atom.

So the number of electrons in osmium 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 osmium is 76.

Thus, the number of electrons in Osmium is 76.

Summary

Number of Protons in Osmium

• The number of protons can be found by knowing the atomic number of that atom.
• Number of Protons in Osmium = Atomic number of Osmium = 76

Number of Neutrons in Osmium

• The number of neutrons can be found by subtracting the atomic number from its atomic mass.
• Number of Neutrons in Osmium = Atomic mass of Osmium – Atomic number of Osmium = 190 – 76 = 114

Number of Electrons in Osmium

• For a neutral atom, the number of electrons can be found by knowing the atomic number of that atom.
• Number of Electrons in Osmium = Atomic number of Osmium = 76

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

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