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Periodic Table

Teresa Cruz

1 2     3    
   
4    
5                        
       
      6            
       
        7
        8 9        
           
         
      10  
    11          
  12            
  13   14          
       
     
    15           16  
     
    17            
18                    
    19          
20                  
   
21                    
 

Across
2.generally have the properties of condutivity luster , and high desity
5.the number of protons in an atom of an element is known as that element's
6.what atomic number is 20 ?
9.is the column of element in the period table
11.what element have 2 protons?
12.is the way a mineral reflect light
14.is a row of element in the period teble
15.what element is h?
17.each different type of matter
18.they are also referred to as semimetals or semiconductors
19.what element is o?
20.what atonic mass is 26.98?
21.are odorless and colorless , and they do not react easily with other element
Down
1.this chat organize all known element according to their properies.
3.is the average mass of an element
4.what element have 20 neutros ?
5.each element is listed in a box showing that element atomic number
7.what element have 12 neutros?
8.the element in group 18 are
10.what element is si?
13.is general are poor conductor of heat and electicuty
16.in the period table are arranged in row and columns

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