Standard 3 Crossword

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Across
  1. 2. the number of valence electrons will predict how ________ an element is
  2. 4. a substance with an orderly three-dimensional arrangement of particles
  3. 6. most of the mass of an atom is found in the ___________
  4. 7. another word for a column on the periodic table
  5. 9. a type of solid that does not have an orderly arrangement of its particles
  6. 13. unit of measurement used for the mass of subatomic particles
  7. 15. if a train were a polymer, each train car would be a __________
  8. 18. information on the periodic table that tells you how many protons can be found in one atom of an element
  9. 20. element with 6 valence electrons and 6 electron energy levels
  10. 21. type of bond that holds water molecules together
  11. 23. particle found in a cloud outside the nucleus
  12. 25. subatomic particle without an electrical charge
  13. 26. type of bond formed between metals and non-metals
  14. 27. particle formed when two or more atoms chemically bond together
  15. 29. atoms are always electrically ____________
  16. 31. a long chain of molecules combined into a larger molecule
Down
  1. 1. chemical symbol for germanium
  2. 3. a chemical symbol on the periodic table is a(n) __________ for the element's name
  3. 5. a material that is made of a single type of particle
  4. 8. characteristics of a substance
  5. 10. element on the periodic table with the lowest mass
  6. 11. rubber is an example of a _________ polymer
  7. 12. the particles found in the nucleus of an atom are neutrons and __________
  8. 13. the smallest amount of an element
  9. 14. an ion always has a(n) __________ number of protons and neutrons
  10. 16. substance formed when two or more elements combine
  11. 17. the most massive element with only one valence electron
  12. 19. the first 92 elements are ________ occurring
  13. 20. the number on the periodic table that shows how energy levels an atom will have
  14. 22. has the symbol Ar
  15. 24. outermost electrons on an atom
  16. 28. element with only 6 protons in its nucleus
  17. 30. a pure substance that cannot be broken down by physical or chemical means
  18. 32. name of a combination of two or more substances physically combined