Potential Matches:
1 : James Chadwick
2 : Ernest Rutherford
3 : JJ Thompson
4 : John Dalton
5 : Democritius

Answer
: He confirmed the existence of the neutron
: He developed the beginnings of the modern atomic theory in the early 1800’s
: He developed a gold foil experiment which determined that an atom was mostly
: He first suggested the presence of atoms and named them atomos (“indivisible”).
: He used a cathode ray tube to disc

Question

Potential Matches:  
1 : James Chadwick  
2 : Ernest Rutherford  
3 : JJ Thompson  
4 : John Dalton
5 : Democritius  
 
    Answer  
     :  He confirmed the existence of the neutron  
     :  He developed the beginnings of the modern atomic theory in the early 1800’s  
     :  He developed a gold foil experiment which determined that an atom was mostly 
     :  He first suggested the presence of atoms and named them atomos (“indivisible”).  
     :  He used a cathode ray tube to disc

wolfe8 · Answer

Welcome to OpenStudy. Look up those people. You should learn what they did. https://www.google.com/