SSC MTS EXAM

Detailed explanation-1: -All the matter or material that we see around us, and even the things which we cannot see through our naked eyes like bacteria, air etc are all made up of atoms collectively. Although atoms are made up of sub-atomic particles mainly including electrons, protons and neutrons.

Detailed explanation-2: -On average, each gram of matter has around 10^24 protons, according to Fermilab, a national laboratory for particle physics in Illinois. That means it is the same as the number of hydrogen atoms, because each hydrogen atom has only one proton (hence why we made the earlier assumption about hydrogen atoms).

Detailed explanation-3: -Dalton’s atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible.