Periodic Table Crossword

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  1. 3. Who is credited for designing the first periodic table
  2. 4. Mendeleev organized the elements in order of increasing atomic ____
  3. 5. Mendeleev used this and periods to organize the periodic table
  4. 6. Good conductors of heat and electricity
Down
  1. 1. Poor conductors of heat and electricity
  2. 2. Contain properties of metals and nonmetals