Atomic Theory

12345678910
Across
  1. 3. The first name of the man who discovered neutrons
  2. 6. A particle beginning with N
  3. 8. Neutrons, protons, and electrons are this.
  4. 10. 2,4,6,8,10,12 etc. fall into this group.
Down
  1. 1. Not positive or negative
  2. 2. A particle beginning with P
  3. 4. It surrounds the nucleus
  4. 5. Something that makes up all matter
  5. 7. It holds neutrons and protons
  6. 9. The last name of the man who discovered neutrons