Across
- 7. specific pattterns present in the periodic table that illustrate different characteristics of an element
- 9. HG
- 10. Negative particle in an atom
- 11. atoms that gain or lose electrons resulting in a charge
- 12. Osmium
- 13. most well known radioactive element
- 14. joining together of isotopes into a larger isotope
Down
- 1. W
- 2. what the colour of light is determined by
- 3. n-1
- 4. Metals are this Top (not reactive) to Bottom (reactive)
- 5. has 53 electrons
- 6. decreases L>R increases R<L
- 8. [XE]6s1