Oh hi my epistimi filous! My name is Democritus from about 450 BC, i discovered the name atoms from the greek word atomus which means 'indivisible'. I found out that there are tiny particles. Remeber what i said and don't igonre it like the people after me have. Gosh people are so ignorant, anyways i do talk alot. Read on my epistimi filous.
Hey! I kind of stole Democritus' idea, don't tell him though. I know much more than him let me explain, atoms are like hard balls that cannot be split , but can join together and make all materials in the universe. Great fact right. Before i go i'm from the year 1803 and my name's John Dalton.
I'm JJ Thompson from 1987 and i discovered the electrons. I believe they are distributed equally throughout the atom. Or as you people may know as the 'plum pudding' model of the atom. To be honest i was eating my daily plum pudding at tea time and realised it had so much to do with the atom. Amazing what you discover at tea time.
I did the great experiment: the gold leaf experiment. I fired alpha particles at a gold foil. Some passed straight through but a few bounced back. I came to a conclusion that atoms are mostly empty space but contain a small dense nucleus. I forgot to introduce myself my name is Ernest Rutherford from 1907. Wait i basically proved Thompson wrong!
I'm Neils Bohr and i say that electrons orbit the nucleus in fixed layers which are called electron shells. I'm not that old, i'm from the year 1913.
I'm the last of them all at 1932. My name's James Chadwick and i discovered neutrons. I found that they weigh the same as protons but have no electrical charge.