Across
- 4. Noble gas used in filling balloons
- 5. Common name of isopropylbenzene
- 8. Element with 1 proton and 2 neutrons
- 9. Deadly poison compound
- 11. A luminous radioactive element
- 12. A metalloid used in making computer chips
Down
- 1. A non-metal liquid at room temperature
- 2. Concentration term that does not depend upon temperature
- 3. Solution that resists pH change
- 6. Transition element with 28 protons
- 7. Vertical columns in Periodic Table
- 10. Common name of acetylsalicylic acid