Question

what is an atom? how many parts does it have?who discovered it ?​

Answer 1

• Structure Of The Atom: Our current model of the atom can be broken down into three constituents parts – protons, neutron, and electrons. Each of these parts has an associated charge, with protons carrying a positive charge, electrons having a negative charge, and neutrons possessing no net charge

Answer 2

Answer:

the smallest particle of a chemical element that can exist is called atom

Explanation:

it have three parts -proton ,electron and neutron

Democritus

John Dalton was the first to adapt Democritus' theory into the first modern atomic model. J.J Thomson was a physicist who is credited for discovering the electron.