Periodic Table Reactivity

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Across
  1. 2. describes an atoms ability to bond with other elements
  2. 5. the most stable group on the periodic table
  3. 8. elements in same group have similar _____
  4. 12. _____ metals are the most reactive metals
  5. 13. _______ electrons are electrons in the outermost energy level
Down
  1. 1. ___ have properties of both metals and nonmetals elements to the right of the metalloids
  2. 3. reactivity ____ as you move from right to left across the table
  3. 4. tendency to remain unchanged or stable
  4. 6. elements in the same ______ have the same number of valence electrons
  5. 7. elements to the left of the metalloids
  6. 9. the rule of ____ makes all but H and He happy
  7. 10. elements in the same ____ have the same number of energy levels
  8. 11. are the most reactive elements on the table