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.
Atoms make up all things.
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
Some say that Democritus named the atom "ATOMUS" which means "invisible" others say John Dalton but i would go with the former (Democritus).
The atom was not discovered by Democritus; Leukipus an Democitus proposed the notion of atom, but only intuitively, not experimentally.
The word "atom" comes from the ancient Greek word "atomos," meaning indivisible. It was introduced by the Greek philosopher Democritus in the 5th century BC. However, the modern understanding of atoms and their structure was developed through the work of scientists like John Dalton, J.J. Thomson, and Ernest Rutherford.
The Atom.
democritus
Democritus
Democritus and his mentor Leucippus postulated the existence of the atom.
An atom is an indivisible part of all matter.
Because Democritus thought that atom was indivisible. He thought that everything in the universe is made up of only one thing which is so tiny called atoms. The word 'atom' came from the greek word 'atomos' meaning 'indivisible'.
Democritus from Abdera
Democritus.
Democritus