Across
- 3. vertical line in periodic table
- 5. elements Group 2 till 13
- 6. Group 17 elements are
- 7. positive particles of an atom
- 9. Group 18 is known as...
- 10. Father of periodic table
Down
- 1. greenish-yellow gas in Group 17
- 2. table for elements in chemistry
- 4. horizontal line in periodic table
- 8. element in Group 1