Modern Atomic Theory

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Across
  1. 6. Metals / harder, stronger than Alkali metals and are less reactive
  2. 8. / _________ elements are less reactive and exist free in nature
  3. 9. / Alkali Metals react strongly with _________ (H2O)
  4. 11. / first element in group 1
  5. 13. / d-Block elements are good conductors of ____________
  6. 16. / ___________ are all radioactive; 1st four are natural; others are man-made
Down
  1. 1. / Lanthanides and Actinides are the ____________ elements
  2. 2. / A p-Block element that we breath everyday
  3. 3. / Properties vary greatly in the __________ elements
  4. 4. / the most reactive nonmetals
  5. 5. Metals / groups 3-12 are examples of ____________
  6. 7. / the only liquid metal
  7. 10. Metals / group of elements that have a silvery appearance and can be cut with a knife
  8. 12. / Have properties of both metals and nonmetals
  9. 14. / Groups 1-2 are examples of ___________ elements
  10. 15. / A p-Block element used in pools to get rid of algae