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periodic table

samantha davila

1
2  
  3 4 5      
6                   7      
         
    8    
        9           10
      11      
         
12                            
       
      13 14    
15                 16  
       
17                  
    18      
     
  19              
 
20        

Across
4.negative charge
6.energies and electrons in an atom.
9.nuetral partical
12.chart that organizes the elements.
14.symbol for atomic mass unit
15.an ion with a positive charge
17.has properties of both metal and nonmetal.
18.smallest particle that has the properties of an element.
19.a negative charge.
20.good conductors
Down
1.column of elements
2.substance that cannot be broken into smaller pieces
3.horizontal row of elements
5.poor conductors
7.possible energies an electron may have in an atom.
8.number of protons.
10.the center of an atom.
11.naturally abundant
13.another name for metalloid
16.a positive charged particle.

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