Across
- 4. neither positive nor negative
- 5. a bond in which electrons are transferred from between atoms
- 7. a group of atoms bonded together
- 8. a bond that shares electron between atoms
- 9. negatively charged subatomic particle
- 10. an attraction between atoms or ions that allows the formation of molecules
Down
- 1. a change of materials into another
- 2. a set of chemical symbols showing present elements in a compound
- 3. electron in the outermost shell
- 6. basic unit of a chemical element