Chemistry

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