Across
- 2. the ability of one atome to bind to another
- 4. the force that holds an atom together
- 6. the energy released by a waterfall
- 8. elements with different number of neutrons
Down
- 1. the parts of an atom with no charge
- 3. what number is the same as the number of protons
- 5. what causes an atom to lose charge neutrallity
- 7. the model used to describe atomic structure