Across
- 5. The simplest unit of matter
- 6. A reaction that gives off heat
- 10. Similar charges tend to...
- 11. The type of compound formed by a metal and a nonmetal
- 12. Type of attraction found between water molecules
- 14. Like charges tend to...
- 16. A molecule with oppositely charged ends
- 17. An electron found in the outermost part of an atom
- 18. The neutrally charged particle in an atom
- 19. A Chemist's unit for amount
Down
- 1. The type of compound formed by two nonmetals
- 2. An atom with a "paws-i-tive" charge
- 3. A pure substance found on a table
- 4. The study of matter and how it changes
- 7. A reaction that absorbs heat
- 8. When 2 or more substances combine and change
- 9. The positively charged particle in an atom
- 10. Name of the scientist associated with moles
- 12. The lightest element
- 13. The negatively charged particle in an atom
- 15. Where most of the mass of an atom is located
- 17. How much space an object takes up