Chemistry

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Across
  1. 3. mass The mass of an element
  2. 4. How a chemical responds to another
  3. 8. A group of atoms stuck together
  4. 9. Conductor of elecricity, high reactivity
Down
  1. 1. An element that lacks the characteristics of metal, non-reactive
  2. 2. A column of elements
  3. 5. electron An electron associated with an atom that can participate in a chemical bond< Revolve around the nucleus
  4. 6. like families
  5. 7. rule The shell has 8 valence electrons