Atomic Structure

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Across
  1. 2. structure A diagram showing the arrangement of atoms and bonds in a molecule
  2. 5. The sum of protons and neutrons in an atom
  3. 7. Atoms of the same element with different numbers of neutrons
  4. 9. electron Electrons in the outermost energy level that participate in bonding
  5. 10. A substance that donates hydrogen ions in a chemical reaction
  6. 11. A substance that accepts hydrogen ions in a chemical reaction
  7. 12. A positively charged particle in the nucleus
  8. 14. A fundamental building block of protons and neutrons
  9. 15. The central, positively charged core of the atom
  10. 16. The number of protons in an atom
Down
  1. 1. A noble gas element with no chemical reactivity
  2. 3. A division of an orbital with a specific energy level
  3. 4. The region around the nucleus where electrons are likely to be found
  4. 6. A negatively charged particle that moves around the nucleus
  5. 8. level A specific energy level in an atom
  6. 9. theory A theory used to predict the shapes of molecules
  7. 13. A particle with no charge found in the nucleus