Chemistry Crossword

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Across
  1. 2. other name for Group IA elements, _____ metals
  2. 5. cylinder with 16 verstical sections arranged according to atomic mass, _____ helix
  3. 7. Sanskrit word which means “first after”
  4. 9. essential element to build and maintain teeth and bones
  5. 10. award given to John Newlands, _____ Medal by the Royal Society
  6. 11. electron attracting ability
  7. 16. total number of gaseous element
  8. 17. total number of metalloids
  9. 18. the element between calcium and strontium
  10. 20. from a Latin word which means “stranger”
Down
  1. 1. he was the first to group elements according to similar properties
  2. 3. meaning of the Latin word “Helios”
  3. 4. electron losing ability, M_____c property
  4. 6. element which acts as a disinfectant added to drinking water and swimming pool
  5. 8. element which acts as cofactor for the hemoglobin in the blood
  6. 12. element which is a major constituent of living things
  7. 13. every 8th element shares the same property, Law of _____
  8. 14. eka-silicon
  9. 15. atomic mass of the middle element is approximately equal to the average of the 1st and 2nd element, Dobereiner’s _____
  10. 19. Latin word which means “the lazy one”