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Periodic Table Puzzle

Humberto Hernandez

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

Across
3.most of the elements are called
5.is the column of elements in the periodic table
7.the first element in group/family 2
10.atomic mass 1.008
13.odorless and colorless don't react easily with other elements
16.symbol is Al
17.atomic number is 5
19.the first element in group/family 8
20.unlike metals
Down
1.the number of protons in an atom of an element is known as that element's
2.symbol Fe
4.symbol is Si
6.is row of elements in the periodic table
8.atomic mass 30.974
9.atomic mass 118.711
11.both metals and non-metals
12.the last element in group 1
14.each different type of matter is called
15.atomic mass 15.999
18.atomic number is 10

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