Across
- 5. positively charged part of the atom
- 7. number on the top of the element box
- 9. unit of measurement when measuring temperature
- 10. an atom that has a positive or negative charge
- 11. smallest known object in the universe
- 12. unit of measurement when measuring distance
Down
- 1. number on the bottom of the element box
- 2. unit of measurement when measuring time
- 3. an atom that has a different number of neutrons
- 4. resource we use to find different elements
- 6. neutral charged part of the atom
- 8. negatively charged part of the atom