Philosophers in the ancient times used to go advanced on some topics and in chemistry it all starts from an atom , one philosopher addressed that he cut a apple to half , to quarter and kept cutting till he could never cut it , that part is an atom , the word apple in Greek was known as something uncuttable
Fundamental Particles In A Atom
There are 3 fundamental particles in a atom and they are the proton , neutron and electron , lets describe these elements on the relation with atom :
Proton - Protons describe what the element is , for example there is 1 proton in a hydrogen but if there are , proton and neutron together are attracted and they are called nucleus
Neutron - Neutrons generate the force that bonds protons and neutrons
Electron - Electrons decides the elements isotope and also decides the reactivity and non reactivity of a metal or any kind of substance , there is assumption that electron spin , electrons do not spin but they move , the energy provides the electrons movement
Image Of Atomic Structure
Electrons around the nuclease
Imagine in this image the center is an atom , around the atom are some kind of shaded parts
These shaded parts predict the position of an electron
As the part is more shaded there is a prediction of electrons there in-fact a lot of electrons but when the black part goes lighter there is a prediction of less electrons present there
Electrons could be anywhere around cause we can never predict where an electron could be