Matching Definitions Crossword
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
 
 
Down: 1) smalles part of a substance 2) middle of an atom3) no electric charge 5) substances that are made up of only one kind of atom7) small part of an element Across: 4) 2 or more atoms that are held together by a chemical bond or foce6) outside of the nucleus is a cloud of empty space 8) has a positive electric charge 9) protons and neutrons makes an atom equal
 

 

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