Chemistry of Life Crossword #1

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Across
  1. 2. Most highly reactive of metals
  2. 5. Element makes up 18.6% of body weight
  3. 6. The number located above the columns on periodic table
  4. 9. Maximum number of electrons found in 2nd energy level
  5. 10. Particle with no charge found in the nucleus
  6. 13. Maximum number of electrons found in 1st energy level
  7. 14. Type of metal that forms ions
Down
  1. 1. React with alkali metals to form salts
  2. 2. The smallest unit of matter
  3. 3. Positive particle located in nucleus
  4. 4. Substance made of only one kind of atom
  5. 7. The number located to the left side of rows on periodic table
  6. 8. Octet Rule says elements are stable with 8 valence electrons
  7. 11. Negatively charged particle in electron cloud
  8. 12. Electrons found in outer energy shell of atom