Chemistry Review Bonus

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Across
  1. 3. These are ductile and great at conducting heat and electricity.
  2. 6. These type of electrons are found in the outermost shell.
  3. 8. Same element but have different mass numbers.
  4. 9. Combination of two or more substances that have not been chemically combined.
  5. 10. The negative subatomic particle
  6. 12. An atom that has gained or lost electrons to become charged.
  7. 14. Rows of the Periodic Table are known as.
  8. 15. Combination of two or more substances that have been chemically combined in a ratio.
Down
  1. 1. Used gold foil to discover the nucleus.
  2. 2. Columns of the Periodic Table are known as.
  3. 4. A negatively charged ion.
  4. 5. The building block of all matter.
  5. 7. Found in the nucleus but, these have no charge.
  6. 11. Describe the atom as a Planetary Model.
  7. 13. A positively charged ion.
  8. 14. The positive subatomic particle