To Democritus the atom looked like a marble. Democritus theorized that matter could only broken down into pieces of a certain size. These pieces which could not be broken any further were called atoms.
Chat with our AI personalities
Atoms
Professor J.J. Thomson, Ernest Rutherford and James Chadwick are the founding fathers of the atom.
Nagasaki
Coz frm dis experiment...it was concluded that atom had concentrated +ve & -ve charge & relatively large mass. As most of the alpha particles passed straight through the foil,this shows that most of the atom is empty space. Thus he concluded that an atom was made of a very dense,positevely charged nucleus surrounded primarily by empty space in which electrons could be found.
Franklin Delano Roosevelt