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atoms1 Word Scramble

 
 


 

 
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Question Answer
protona positive particle in the nucleus of the atom
neutrona neutral particle in the nucleus of the atom
electrona negative particle which moves in shells around the nucleus
atomic numberthe number of protons in an atom
mass numberthe sum of protons and neutrons in an atom
isotopesatoms of the same element with the same number of protons and electrons but different numbers of neutrons