Intro to Chemistry Crossword

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Across
  1. 2. The horizontal rows on the periodic table.
  2. 4. Sub-atomic particle with a negative charge
  3. 8. Sub-atomic particle with a neutral charge
  4. 9. Smallest unit of matter in the universe
  5. 10. A pure substance formed by chemically bonding two or more elements
  6. 12. Negatively charged particle
  7. 14. Atomic ___________ is the measure of all the measure of the number of protons and neutrons in an atom
  8. 15. A charged particle
Down
  1. 1. Any substance arranged physically with any other substance in any ratio
  2. 3. A chemical process in which two or more substances chemically bond to form new products
  3. 5. A positively charged particle
  4. 6. Vertical columns on the periodic table
  5. 7. Sub-atomic particle with a positive charge
  6. 11. ___________ molecules are stable arrangements of two of the same element chemically bonded together
  7. 13. A version of an element with a different number of neutrons in the nucleus.