This is a question that would have literally have taken two seconds to look up on google but the answer is 1.88 years.
 
        
             
        
        
        
Answer:Bohr placed the electrons in distinct energy levels.  Rutherford described the atom as consisting of a tiny positive mass surrounded by a cloud of negative electrons. Bohr thought that electrons orbited the nucleus in quantised orbits.
Explanation: also rutherfords was just a hypothesis while Bhor took the time to make his an experiment 
 
        
             
        
        
        
Answer:
mass and distance
Explanation:
 force is mass while motion can also be regard as distance or movement