Atoms

12345678
Across
  1. 1. A neutrally charged subatomic particle located in the nucleus.
  2. 5. Cherry with a pit theory
  3. 7. Greek philosopher
Down
  1. 2. Chocolate chip cookie theory
  2. 3. Solar system theory
  3. 4. A positively charged subatomic particle located in the nucleus.
  4. 6. Billiard ball theory
  5. 8. A negatively charged subatomic particle located outside the nucleus.