S8p1a Crossword
              
              
              
              
              
              
              
              
              
              
              
              
 
 
Down: 1) The number of protons in the nucleus2) A positively charged particle that is part of an atom's nucleus3) The central core of the atom5) A small particle in the nucleus of an atom, with no electrical charge 7) A pure substance that cannot be broken down Across: 4) The smallest particle of an element6) Am atom with the same number of protons and a different number of neutrons8) The negatively charged particles9) The sum of protons and neutrons in the nucleus 10) The specific amount of energy an electron has
 

 

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