Across
- 2. elements bonded together
- 4. goes with the proton
- 6. table of elements home of elements.
- 8. are columns
- 9. made up 1 kind of atom
- 10. smallest particles
Down
- 1. on the 3rd layer
- 3. molecules that have more then one element
- 5. in the nucleus
- 7. they are rows
- 10. number helps determine the number of protons and electrons