Chemistry

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Across
  1. 1. valency of noble gases
  2. 4. an amphoteric metal with valency +2 and +4
  3. 5. an element whose electronic configuration is 2,8,1 is likely to be a ______
  4. 7. the common name of copper[1] chloride
  5. 9. a reversible thermal decomposition
  6. 13. carbon dioxide in water can be separated by_______
  7. 14. the displaced product formed when sodium reacts with cold water
  8. 15. the chemical name for dinitrogen monoxide
Down
  1. 2. subatomic particle with negligible mass
  2. 3. scientist who discovered neutron
  3. 6. a double decomposition reaction where an acid and base reacts to give salt and water
  4. 8. a gas that is highly soluble in water
  5. 10. metalloid in period 3
  6. 11. maximum number of electrons in L shell
  7. 12. neutral gas obtained on thermal decomposition of potassium nitrate