Across
- 5. how the electrons are arranged
- 7. A charged atom
- 9. where the electrons are located
- 10. the number of protons in the nucleus
- 11. positive and located in the nucleus
- 12. A column of elements
- 13. how an atoms valence electrons interact
- 15. A row of chemical elements
Down
- 1. located on the outermost shell
- 2. what the atom is made of
- 3. Where you find information on elements
- 4. neutral and located in the nucleus
- 6. smallest unit of an element
- 8. where the protons and neutrons are
- 14. protons and neutrons combined weight