Across
- 3. separating pure water from salt water
- 6. Most electronegative element
- 11. First noble gas in the periodic table.
- 12. Apparatus can measure exactly 25cm3 of solution
- 13. Horizontal row of elements in the period table
- 14. Least reactive elements in Halogen group
Down
- 1. Process in which solid change to gas
- 2. Element used to make batteries of electric cars
- 4. A gas turns damp red litmus paper blue
- 5. evaporation takes place at
- 7. gas relights a glowing splint
- 8. process by which a liquid turns into a solid
- 9. What is the center of an atom called
- 10. Seventh element in periodic table