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Periodic Table

Jordan Byrne

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

Across
1.A particle that has no electric charge and is located in an atom's nucleus.
5.A Horizontal row in the periodic table.
6.A vertical column in the periodic table.
7.An element that has properties of both metals and non-metals.
8.An element that tends to be shiny, easily shaped, and a good conducter of heat, and electricity.
11.An element that is not a metal and has properties oposite of a metal.
12.A table of the elements, arranged by
14.An atom or group of atoms that has a positive or negative electric charge.
15.The average mass of the atoms of an element.
16.An atom of one element that has a different number of neutrons than another atom of the same element.
17.Likely to undergo chemical change.
Down
2.The process by which the nucleus of an atom of an element realeases energy and particles.
3.An orbit followed by electrons around an atom's nucleus.
4.A positively charged particle located in an atom's nucleus.
9.The amount of time it takes for half the nuclei of a radioactive isotope to decay into forms of another element.
10.The number of protons in the nucleus of an atom.
11.The central region of an atom where most of the atom's mass is found in protons and neutrons
13.A negatively charged particle located outside an atom's nucleus.

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