Across
- 2. The smallest atom
- 6. What is 12th element in periodic table?
- 7. What is Ca?
- 12. How many elements scientists have discovered?
- 13. What is the smallest particle of a compound called
- 18. No charged particles
- 20. Can atoms are destroyed?
- 21. A group of atoms bonded tightly together
- 23. The arrow in period table
Down
- 1. Which is the most common non-metal found in the earth's crust?
- 3. Who was the first to publish a period table?
- 4. How many main groups do Periodic table have?
- 5. What is the biggest element
- 7. What is 17th element in Periodic table?
- 8. How many elements have been made in laboratories?
- 9. Which handed side of Period table have metals
- 10. The least metallic atom
- 11. Positively charged particles
- 14. What is Sulfur dioxide?
- 15. What is Na?
- 16. How long is atom's life?
- 17. A substance made up of only one type of atom
- 19. How many rows in Periodic table?
- 22. which one is bigger? molecules or ununennium What is 119th element?