Across
- 2. Type of reaction that requires energy
- 4. A molecule composed of two or more different atoms/elements
- 5. Charged particles
- 8. Type of bond between two oppositely charged ions
- 11. Making or breaking of chemical bonds
Down
- 1. Type of reaction that releases energy
- 3. Occurs when electrons are transferred or shared
- 6. Smallest particle of an element
- 7. Two or more chemically joined atoms
- 9. Anything that occupies space and has mass
- 10. Type of reaction that rearranges or swaps molecules
- 12. Simplest form of matter