Atomic Nature of Matter Crossword
                
                
                
                
                
                
                
                
                
 
 
Down: 2) atoms that combine to form larger particles3) atoms of the same element having different number of neutrons4) substance that is made of atoms of different elements combined in proportion Across: 1) basic unit of a chemical element5) tells the proportions of each kind of atom6) charged particles7) building blocks of the nucleus
 

 

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