Chemistry Basics

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Across
  1. 3. change that doesn't create any new chemicals
  2. 6. the atom with electron configuration 2,6
  3. 10. has no charge
  4. 12. this atom has 7 protons
  5. 13. change that creates new chemicals
  6. 17. the materials produced by a chemical reaction
  7. 18. the rule that determines how many electrons fill the outermost shell of an atom
  8. 22. negative part of the atom
  9. 24. this atom has an atomic mass of 7
  10. 26. atoms found on the right of the periodic table
  11. 27. metals ______ electrons
  12. 28. centre of the atom
Down
  1. 1. the number that tells how many protons and neutrons are in the nucleus
  2. 2. name for electrons found in the outermost shell
  3. 4. an atom that has an overall charge
  4. 5. has atomic number 79
  5. 7. nonmetals _______ electrons
  6. 8. a vertical column on the periodic table
  7. 9. name for a negative ion
  8. 11. makes up all matter
  9. 14. the number that tells how many protons an atom has
  10. 15. positive subatomic particle
  11. 16. a row on the periodic table
  12. 19. name for a positive ion
  13. 20. number of electrons that fit in the first shell
  14. 21. the materials used up in a chemical reaction
  15. 23. number of electrons that fit in the second electron shell
  16. 25. types of atoms found on the left of the periodic table