Across
- 1. a post-transition metal with the atomic number of 13
- 5. a reactive nonmetal with an atomic mass of 79.904
- 6. a unknown properties with a name that starts with T
- 9. a transition metal with an atomic mass of 47.867
Down
- 2. a alkali metal with a symbol of Li
- 3. a metalloid with an atomic mass of 10.811
- 4. a lanthanide with a atomic number of 58
- 6. a actinide with a atomic number of 90
- 7. a alkaline earth metal with a symbol of Ca
- 8. a noble gas with a symbol of He