Across
- 3. Atoms with unequal numbers of protons and electrons
- 6. 17 protons and 16 electrons
- 7. chemical particle composed of two or more atoms united by a chemical covalent bond
- 8. shell, outermost shell
- 12. Two or more different atoms joined by an ionic or covalent bond
- 13. example of an antioxidant
- 15. radicals, dangerous because they destroy healthy molecules by changing them into them
- 19. neutralize free radicals
- 20. O2- oxygen gas- covalent bond Molecule or Compound?
Down
- 1. substances that ionize in water and form solutions that can conduct electricity
- 2. radicals, chemical particles with an odd number of electrons
- 4. positively charged and made by losing an electron
- 5. molecules with the exact same molecular formula BUT atoms are in a different arrangement
- 9. C6H12O6- glucose- covalent bonds Molecule or Compound?
- 10. charged particles with unequal numbers of protons and electrons
- 11. negatively charged and made by gaining an electron
- 14. formulae, identifies types and numbers of each element present (ingredients)
- 16. 16 protons and 17 electrons
- 17. rule, must have 8 electrons in valence shell to be stable except H and He
- 18. E, A vitamin that is an antioxidant