Chemistry Crossword

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Across
  1. 4. has a different number of proton and neutrons
  2. 5. type of chemical bond formed by the sharing of electrons
  3. 8. positively charges subatomic particle
  4. 10. the addition of the number of proton and neutrons
  5. 12. type of chemical bond that involves the attraction of two slightly charged molecules
Down
  1. 1. negatively charged subatomic particle
  2. 2. the smallest building block of all matter that keeps its chemical properties
  3. 3. your science teacher's favorite color
  4. 6. where the protons and neutrons are found in an atom
  5. 7. type of chemical bond formed by the complete transfer of electrons
  6. 9. neutral charged subatomic particle
  7. 11. an atom with a positive or negative charge