Democritus

• Democritus used philosophy. 
• He believed the atom was inadvisable. 

John dalton

• Dalton used science. 
• He was the first to prove that there were atoms. 

j.j. thomson

• Discovered the electron. 
• He experimented the cathode rays.

Ernest rutherford

• Father of nuclear physics. 
• Invented the radio.

NeiLS bohr

• Made contributes to understand atomic structure. 
• He developed the Bohr model of the atom.

Erwin Schrodinger

• He was an Austrian physics. 
• He developed numerous of fundamental in the field of Quantum Theory.  

James chadwick

• He was awarded the Nobel Prize in Physics. 
• He discovered the Neutron. 

Jared