Element Cross Word Puzzle

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Across
  1. 4. Two or more pure substances chemically combined
  2. 6. Element with an atomic mass of 222
  3. 8. Bond between nonmetals
  4. 11. Element with an atomic number of 90
  5. 12. A group of atoms bonded together
  6. 13. Element with an atomic number of 77
  7. 16. Element with an atomic number of 75
  8. 18. Number on the top left corner of a element on the periodic table
  9. 19. Pure substance made of only one type of atom
Down
  1. 1. Smallest particle of an element
  2. 2. Element with an atomic number of 84 and atomic mass of 209
  3. 3. Bond between metal and nonmetal
  4. 5. Element with an atomic number of 92
  5. 7. Element with an atomic mass of 226
  6. 9. Sum of the mass of the protons and neutrons that make up an atom
  7. 10. Element with an atomic number of 32
  8. 14. Element with an atomic number of 3
  9. 15. Atom of the same element that have different neutrons
  10. 17. Element with an atomic number of 36
  11. 20. Element with an atomic number of 63