Periodic Table

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Across
  1. 2. Element responsible for the smell of rotten eggs
  2. 5. The number of protons and neutrons in an atom
  3. 6. Building blocks of atoms that effect atomic mass and what element the atom is, but not volume
  4. 10. Gases that are always stable and cannot react with other elements
  5. 12. The only noble gas in the 1st period
  6. 13. Used in fire extinguishers, symbol Bi
  7. 14. If an element has a full outer shell of electrons, it is ______
  8. 15. Used to tint windows and ceramics
Down
  1. 1. The assortment of all of the elements by atomic number by Mendeleev
  2. 3. The sections on the periodic table that indicate energy levels
  3. 4. Building blocks of atoms that contribute to the volume of the atom
  4. 7. Composed of the two elements Sodium and Calcium
  5. 8. the element notated on the periodic table as "K"
  6. 9. Building blocks of atoms that only have an effect on atomic mass
  7. 11. Columns on the periodic table that divides elements into families