Periodic Table Crossword

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Across
  1. 3. What is H20?
  2. 5. The exception to the first row being alkaline metals
  3. 6. Where the protons and neutrons are found in an atom
  4. 7. A row of elements in the periodic table
  5. 9. Metals are good conductors of ________
  6. 10. The element with the symbol K
  7. 11. The 16th element of the periodic table
Down
  1. 1. The 2nd group of the periodic table is also known as
  2. 2. The family that is the most stable on the periodic table
  3. 4. Each layer after the first layer of a Bohr Rutherford Diagram can have this many electrons in it
  4. 8. The element with an atomic mass of ~20