Across
- 3. It is the most common element on Earth.
- 6. This is the tenth element in the periodic table.
- 8. This is the first element in the Actinide Series.
- 11. These gases have stable electronic configurations.
- 12. This is the first element in the Lanthanide Series.
- 14. The symbol of the 118th element in the periodic table.
- 16. These are elements with atomic number greater than 92.
- 21. The discovered of Chlorine is from what country?
- 23. This is the 103rd element in the periodic table.
- 24. This is the other term for family in the periodic table.
- 25. The only liquid non-metal.
- 27. The symbol for the element in number 1.
- 28. He developed the first periodic table of elements.
- 29. Semi-metals are also called ________.
Down
- 1. These elements are under group VII-A.
- 2. The only element that starts with the letter x.
- 4. How many elements are found in the stepped diagonal line?
- 5. Element symbol for Ununquadium.
- 7. Discovered by Sir Humphry Davy of Britain in 1807.
- 9. These elements are found in the B families.
- 10. It is the most electronegative of all elements.
- 13. It is the most common element in the Universe.
- 15. U is the symbol of what element?
- 17. Named after Russian scientist who devised the periodic table.
- 18. William ______ discovered Titanium in 1791.
- 19. It is the 100th element.
- 20. This is the collective name of elements arranged horizontally in the periodic table.
- 22. The only liquid metal at room temperature.
- 26. About 80% of the known elements are _______.
- 30. How many elements are under the II- A family?