Across
- 1. Table - A chart that arranges all chemical elements
- 3. - change of pattern
- 5. - elements with a mix of metals and nonmetals
- 9. - represents elements with the same number of electrons shells
- 10. - cannot be broken down simpler
- 11. Metals - soft, shiny, and highly reactive metals
- 12. behavior - description of ways a substance can change
Down
- 2. - substance undergo a chemical reaction
- 4. / Family - collection of elements
- 6. Mendeleev - organized elements by atomic weight
- 7. - an element that's shiny
- 8. - lack properties of metals