Chemistry

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Across
  1. 3. an atom with a negative charge
  2. 5. no one can take away from this element
  3. 7. an atom with a positive charge
  4. 8. a particle with a charge
  5. 12. how powerful an atom is at stealing an electron
  6. 13. Valence Shell Electron Pair Repultion
  7. 15. the outermost electrons
  8. 16. Compound one compound is a cation and the other is an anion
Down
  1. 1. anything that takes up space and has mass
  2. 2. 6.02 x 10^23
  3. 4. Compound that tends to be more variable
  4. 6. everything to the right of the "stair steps" (periodic table)
  5. 8. atoms of the same elements but different numbers of neutrons
  6. 9. Reaction A change in the electrons on the outside
  7. 10. the rows on the periodic table
  8. 11. table a table filled with all the elements
  9. 14. the amount of mass per volume of an object