Across
- 3. 2+ elements that are connected by bonds
- 6. atoms center
- 10. particle that is negatively charged
- 11. electron on outer shell of atom
- 13. place on periodic table
- 14. compound of hydrogen,carbon, oxygen
- 16. macromolecule made of amino acids
- 17. includes fats, oils and waxes
- 18. bond two atoms share using electrons
Down
- 1. particle that is positively charged
- 2. makes up macromolecules
- 4. contains H,O,N and P
- 5. large organic molecule
- 6. subunit of what n.a. are made of
- 7. makes up a polymer
- 8. particle with no charge
- 9. protons+electrons=
- 12. 2- letter abbreviation of element name
- 15. most basic form of matter