What is an Atom? (Urdu-English)

What is an atom? ek atom kya hota hai yah hamara aaj ka sawal hai. here we have explained the history, Dalton's atomic theory, existence of an atom, existence of subatomic in an atom. fir bhi have explained the topic both in English and Urdu for the better understanding of the audience. hope you will like it. for more like share and subscribe. thank you very much goodbye Allah Hafiz.
#atom #Dalton_theory #subatomic_particles

[AlphaSciAcademy]

Atoms are the basic units of matter and the defining structure of elements.
The term "atom" comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided.
We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles, such as quarks.

[AlphaSciAcademy]

Atoms were created after the Big Bang 13.7 billion years ago.
As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form.
Quarks came together to form protons and neutrons, and these particles combined into nuclei.
This all took place within the first few minutes of the universe's existence, according to CERN.

[AlphaSciAcademy]

It took 380, 000 years for the universe to cool enough to slow down the electrons so that the nuclei could capture them to form the first atoms.
The earliest atoms were primarily hydrogen and helium, which are still the most abundant elements in the universe, according to Jefferson Lab.
Gravity eventually caused clouds of gas to coalesce and form stars, and heavier atoms were (and still are) created within the stars and sent throughout the universe when the star exploded (supernova).

[AlphaSciAcademy]

An atom is the smallest unit of ordinary matter that forms a chemical element.
Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms.
Atoms are extremely small, typically around 100 picometers across.

[AlphaSciAcademy]

Definition of an Atom:
the smallest particle of a chemical element that can exist.