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Periodic Table crossword

J.Guilford

Use of periodic table

1
2                        
 
3       4                
   
  5                        
6 7    
    8                            
       
    9   10                        
         
11                       12
         
    13                
       
      14           15  
    16    
     
17                    
     
18                      
19            

Across
2.elements in group one
3.number of protons in the nucleus
5.the force of attraction that holds two atoms together
8.Repeating three-dimensional pattern
9.element symbol
11.total number of protons and neutrons in an atom
13.A negatively charge subatomic particle
14.Subatomic particle with no charge
17.Both metals and nonmetals
18.elements with eight valence electrons
19.A positively charge subatomic particle
Down
1.Electrons in the outer shell
4.Compounds that contain ionic bonds
6.Unstable elements
7.Force of attraction between oppositely charged ions
10.Name of element
12.Charged particles that form during chemical changes
15.Center of an atom
16.smallest particle in a element

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