Chemistry crossword

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Across
  1. 1. amount of material contained in a body
  2. 4. is an ion that is negatively charged, and is attracted to the cathode (negative electrode) in electrolysis
  3. 6. Table/ systematic arrangement of known elements based on increasing atomic number
  4. 7. smallest estimated value from the device
  5. 8. German who contributed in the development of the periodic table in 1829
  6. 9. it a non-metal that behaves like a metal
  7. 10. measure of the pull of gravity of Earth
  8. 12. a process of comparing something with a standard (devices) to see how many times as big it is with a standard
  9. 15. element that is best for conducting heat and electricity
  10. 20. Gravity/ ratio of the weight of a substance to the weight of equal volume of water
  11. 22. English man who contributed the Law of Octave in 1865
  12. 23. property of metals wherein they're able to be drawn to wire or sheets
  13. 25. Latin name for Ag
  14. 26. group of the horizontal rows int he periodic table
  15. 27. the ratio of the mass of a substance per unit volume
Down
  1. 1. he focused on the chemical properties of the elements and his contribution to the periodic table is superior
  2. 2. Number/ it is the identity of the element; refers to the # protons and electrons
  3. 3. Molecular Theory/ this theory stated that when the volume increases the density becomes smaller
  4. 4. phenomenon wherein a substance can behave as acid or base at the same time
  5. 5. composition is variable; easily separated
  6. 11. refers to the hotness or coldness of a substance
  7. 12. property of metals that can be hammered into thin sheets
  8. 13. smallest exact digit or line which is taken directly from the instrument or device
  9. 14. simplest form of substance
  10. 16. metals/ group of metals where Silver, Gold and copper can be made to coins or jewelries
  11. 17. is anything that has mass and volume
  12. 18. group of the vertical rows in the periodic table
  13. 19. French man who contributed the Helix in 1889
  14. 21. is an ion, which has a net positive charge, is attracted to the anode (positive electrode) in electrolysis
  15. 24. consisting of 2 or more elements but in a definite ratio
  16. 26. substance/ single component; constant composition