18 Mar 2020

What is an ATOM | Interesting Facts about Atoms | Facts about Atoms | Fun Facts about Atoms

In this post I will tell you many unbelievable facts about atoms, that will blow your mind. but before this, you should know what is an atom. With the help of these Fun atom facts you will know, How small an Atom is.

What is an Atom

An Atom is the smallest component of an element. Everything that we see around us, whether it is in the form of solid, liquid, gas or plasma is made up of atoms. Initially it was thought that atoms can not be further divided into smaller particles but later it was found that it is made up of three Types of subatomic particles- electrons, protons and neutrons. Protons and neutrons are found in the nucleus of the atom and electrons fly around the nucleus in the form of a small cloud.
Now it's time to know some fascinating facts about atoms.

So let's start

Atoms Fact 1

As you know that our body is made up of atoms. But do you know how many atoms are there in our body? There are about 7 billion billion billion atoms in the human body. This number is a billion billion times the total human population on earth. But even more surprising fact is that 98% of these atoms in our body are replaced every year, without us even realizing.

Atoms Fact 2 

The structure of an atom is quite similar to the solar system. As planets revolve around the sun, in the same way at the atomic level, electrons revolve around the nucleus. You will find it hard to believe that 99.999% part of an atom is empty space. It is so, because the nucleus and electrons are extremely small in comparison to the total size of an atom.
So if we remove all the empty space of atoms, we could fit the entire human population into an Apple.

Atoms Fact 3 

The nucleus of an atom is extremely dense. Nearly all the mass of an atom is contained by the nucleus. Contribution of electrons to the mass of an atom is very little. The mass of a proton and neutron that are present in the nucleus of the atom is nearly equal but a proton has a mass 1836 times the mass of an electron.

Atoms Fact 4 

Even electrons, protons and neutrons are not the fundamental particles. An electron is a lepton while protons and neutrons consist of three quarks each.

Atoms Fact 5 

An atom is extremely small. The size of an average atom is about one tenth of a billionth of a meter. The largest atom cesium is nearly nine times bigger than the smallest atom helium.

Atoms Fact 6 

Hydrogen atom is the most abundant type of atom present in the universe. Nearly 74% of the total atoms present in the Milky Way galaxy are hydrogen atoms.

Atoms Fact 7 

Protons and neutrons present in the nucleus are held together by strong and weak nuclear forces. The force that binds the electrons around the nucleus is the electrical attraction,  as protons are positively charged particles while electrons are negatively charged. But here, you may ask, as all the protons have same positive charge, how protons are held together, why don't they repel each other?
So the answer is, the attracting nuclear force is much stronger in comparison to the electrical repulsion.
You will Find it interesting that the strong force that binds protons and neutrons together is 1038 times more powerful than the force of Gravity. But the particles need to be very close to each other to feel the effect of the nuclear force.

Atoms Fact 8 

An atom is electrically neutral as the number of negatively charged electrons is equal to the number of positively charged protons and neurons have no charge.

Atoms Fact 9 

Now the fact that I am going to tell you will blow your mind. Do you know that scientists have calculated the total number of atoms present in the observable universe!!! yes...
The total number of atoms in the observable universe is in the range of 10^78 to 10^82. I know you can not even imagine, how big this number is. Just try to write this number by placing 82 zeros after 1, you will know, what I mean.

Atoms Fact 10

With the help of this fact you will understand how small an atom is. The total number of atoms in a droplet of water is 5×10^21. It is more than 5 sextillion atoms per droplet.

So friends these were some amazing facts about an atom.

Facts about Atoms Video


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