Across
- 3. neutrally charged subatomic particle
- 4. formed when an element doesn't have the same amount of protons and electrons
- 6. elements with completely filled outer orbitals
- 8. positively charged subatomic particle
- 10. another name for columns in the Periodic Table
Down
- 1. designer of the Periodic Table
- 2. another name for rows in the Periodic Table
- 5. multiple forms of the same element that have the same amount of protons, but different a number of neutrons
- 7. negatively charged subatomic particle
- 9. contains the protons and neutrons