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Periodic Table

APRIL ' ESPINOZA

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

Across
3.is the second lightest elementand is the second most abundant element
5.its atomic number is 200.59 & has eighty protons
6.has seventy-nine protons
8.a non-metallic element existing in the three crstalline forms.
9.agaseous element that forms 78 percent by volume
11.has twenty-eight protons
12.a grayish-white hard brittle metallic element.
14.has eleven protons & its atomic number is 22.990
16.it's atomic number is107.868
17.is a pale yellow gas
18.the fifth most abundant element in the earths crust
Down
1.14 protons
2.is a non metallic element
4.is a colorless, odorless, tasteless, non-toxic, non-metallic element
7.a non-metallic element that exists in its free form.
8.ductila metal with very high thermal and electrical conductivity
10.its atomic number is 26and its symbol is "Fe"
13.is a chemical element in the boron group
15.it's atomic number is 20.180
16.it is an abundant multivalent non-metal

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