Across
- 4. What are the horizontal rows referred to in the periodic table?
- 5. What element has 47 protons?
- 8. What element has an atomic mass of 80?
- 9. What grouping shows a lot of variation in their properties?
- 10. What are the columns called in the periodic table?
Down
- 1. What is the largest family in the periodic table?
- 2. What grouping makes up 75% of the elements in the periodic table?
- 3. How many families make up the periodic table?
- 6. Who is credited for creating the periodic table?
- 7. What chemical element has the symbol Ti?