Chemistry Review

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Across
  1. 2. - atoms with different number of neutrons
  2. 4. - this subatomic particle is how we identify atoms
  3. 5. - _____ and volume are necessary to calculate density
  4. 6. - which particle does not contribute to the mass of an atom
  5. 7. - Electrons in the outer orbital are called
  6. 8. - This scientist discovered the nucleus
  7. 10. - What element has 5 protons
  8. 12. - Atomic mass is calculated by adding protons & ____
Down
  1. 1. - Blueberry muffins are this type of mixture
  2. 3. - Takes up space & has mass
  3. 6. - What type of matter cannot be broken down into simpler substances
  4. 9. - charged atoms are called
  5. 11. - Water is classified as a ______