periodic table

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Across
  1. 1. another word for weight
  2. 5. water is a ______
  3. 6. an element compound that is a great conductor of both electricity and heat
  4. 7. a chemical substance that is catergorized in the periodic table
  5. 9. not liquid nor solid
  6. 10. the family with shiny, and silvery-white metals
  7. 12. the number of proton found in the nucleas of the atom
  8. 14. the annitials of the elemnts meaning
  9. 16. science of matter
  10. 19. the name of the table that shows chemical elements
  11. 20. the family of all gas elements
Down
  1. 2. not liquid nor gas
  2. 3. the family with shiny, soft, silvery, and highly reactive metals
  3. 4. the family that contains the fluorine, chlorine, bromine, iodine, astatine, and ununseptium elements
  4. 8. the family in the middle of the table
  5. 11. part of the rare earth family with atomic numbers of 57-71
  6. 13. the family of no metals
  7. 15. all of the elements are radioactive with atomic numbers of 89-103
  8. 17. a vertical column in the periodic table that helps group the elements in their similarities
  9. 18. the creator of the periodic table in 1869