Across
- 3. no electrical charged and located in the nucleus
- 4. add protons + neutrons
- 5. positive charged subatomic particle
- 6. negatively charged subatomic particle
- 7. base of all matter
- 8. number is the number of protons in the nucleus
Down
- 1. center of an atom
- 2. of an atom consist of a nucleus in the center
- 5. table this table shows all the different atoms there are on earth