Atomic Structure Vocab

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Across
  1. 4. Subatomic particle with no charge
  2. 6. An interaction that holds atoms or ions together
  3. 8. The smallest unit of element
  4. 10. Conducts heat and electricity poorly
  5. 11. states that mass cannot be created or destroyed
  6. 12. Atom's central region
  7. 13. Shiny, conducts heat well
  8. 14. Number of protons in a nucleus of an atom
  9. 17. A region around the nucleus of an atom where electrons are likely to be found
  10. 18. A substance that forms in a chemical reaction
  11. 19. Sum of numbers protons and electrons
Down
  1. 1. A horizontal row of elements on the periodic table
  2. 2. A combination of chemical symbols to represent a substance
  3. 3. Negatively charged proton
  4. 5. Substance that participates in a chemical reaction
  5. 7. Positively charged subatomic particle
  6. 9. Electron in the outermost shell
  7. 15. Has properties of both metals and nonmetals
  8. 16. Arrangment of the elements in order