Some Basic Concept of Chemistry

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Across
  1. 2. Name the element'C'
  2. 4. the law of -------of mass:mass can neither be created nor destroyed
  3. 5. tiny indivisible particles called as
  4. 7. valency of carbon
  5. 8. full form amu
  6. 9. name one acid
  7. 11. full form of SI
Down
  1. 1. name 11th element in periodic table
  2. 3. when atom of different elements combine in fixed ratio
  3. 5. 6.022×10^23
  4. 6. –-------measures in deree Celsius
  5. 10. mass per unit volume