Standard 3 Crossword

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