Marc Cruz Camacho B2 02/25/21 Periodic Table of Elements

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Across
  1. 4. properties that becomes clear during or after a chemical reaction.
  2. 5. helps indicate elemenets
  3. 9. Periodic table of
  4. 10. help scientists to make stuff such as vaccines
  5. 12. scientist trained the study of chemistry
  6. 13. vertical column
Down
  1. 1. chemical reacting
  2. 2. person who developed the PTOE
  3. 3. chemical groups
  4. 6. uses periodic table of elements
  5. 7. horizontal row
  6. 8. number of protons in the nucleus
  7. 9. a abbreviation
  8. 11. Protons and Neutrons