The Periodic Table

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Across
  1. 2. only made up one type of atom
  2. 5. smallest unit things are made up of
  3. 7. elements that in a column going down on the periodic table
  4. 8. the symbol of neon
  5. 9. made up 2 or more different elements chemically combined together
Down
  1. 1. go across the periodic table - adds a new shell each time
  2. 2. negatively charged pat of an atom
  3. 3. no charge and found in the nucleus of an atom
  4. 4. positively charged part of an atom found in the nucleus
  5. 6. the symbol for magnesium