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History of the Atom and periodic Table

1 2
3                
   
4            
   
5              
  6          
7  
  8        
9                
     
     
  10                  
       
    11                  
       
    12 13          
   
14                    
   

Across
3.The elements in a triad would be sorted in similar appearence and ... (Plur.)
4.The ... was the second discovered atomic particle
5.The ... was the third discovered atomic particle
6.Ernest Rutherford discovered this atomic particle
8.This experiment uses ... beams
9.The ... was the first discovered atomic particle
10.Mendeleev's periodic table miss placed I (Iodine) and Te (...)
11.The surname of the scientist that prounded the law of triads
13.Mosely mainly ordered his periodic table by their ... number
14.The full name of the scientistthat thought that an atom looked like a billiard/pool ball
Down
1.James Chadwick discovered this atomic particle
2.The simple experiment, performend under the observation of Ernest Rutherford, discovered the existanc of the nucleus
7.The Russian scientist who mainly ordered elements by their atomic mass
9.J.J. Thomson discovered this atomic particle
10.In the law of triads, there are ... different elements(e.g. two)
12.The beams would hit the gold foil then bounce off onto a ... sulphide screen

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