Across
- 4. the smallest part of a substance
- 5. something that is lacking positive qualities
- 6. what type of formula is the original formula
- 8. A rule that atoms are always searching and prefer to have 8 electrons in the valence shell.
- 9. the element with the atomic number 7
Down
- 1. groups of atoms that are held together with chemical bonds
- 2. something that is lacking negative qualities
- 3. the name of the electrons that are located in the electron shell
- 6. what type of bond share their atoms
- 7. what type of bond transfer electrons