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Period Table Crossword

Alexis

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

Across
2.a vertical column of elements in the periodic table
8.the total number of protons and neutrons in the nucleus of an atom
11.any of the possible energies an electron may have in an atom
14.an element that has properties of both a metal and nonmetal
15.a horizontal row of elements in the periodic table
16.a positively charged subatomic particle in the nucleus of an atom
17.gourp 17 or 7A
19.a region in an atom where there is a high probability of finding electrons
20.group 18 or 8A
Down
1.the center of an atom; made up of protons and neutrons
3.the smallest particle that has the properties of an element
4.the elemnts that are usually poor conductors of heat and electricity
5.group 1 or 1A
6.an electron in the outermost energy level of an atom
7.group 16 or 6A
9.a negatively charged subatomic particle found in the energy level of an atom
10.the number of protons in the nucleus of an atom
12.another name for group
13.a neutral subatomic particle in the nucleus of an atom
18.the elements thta are good conductors of heat and electricity

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