Team 4

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Across
  1. 4. Lightest and most abundant element (8)
  2. 5. Bond formed by electron sharing (8)
  3. 9. Element essential for bones and teeth (7)
  4. 10. Scientist who proposed the atomic theory (6)
  5. 12. Positively charged particle in an atom (6)
  6. 14. Type of reaction that absorbs energy (11)
Down
  1. 1. Speed at which a reaction occurs (8)
  2. 2. Table (Table that organizes all elements (8)
  3. 3. Measure of acidity or basicity (2)
  4. 6. Process of a solid turning into a gas (11)
  5. 7. Negatively charged particle in an atom (8)
  6. 8. Symbol for gold (Au)
  7. 11. Symbol for sodium (2)
  8. 13. Gas essential for respiration (6)