Periodic Table

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Across
  1. 2. A vertical column of elements is called a ________ or family.conductors Nonmetals are generally not good _______________ of heat or electricity.
  2. 4. Non-metals are generally poor ____________ of heat or electricity.
  3. 6. The _____________ is found above the chemical symbol on the periodic table.
Down
  1. 1. Elements found in a group have similar chemical ___________.
  2. 3. Every element has a unique atomic number, the number of ___________ in the nucleus.
  3. 5. Metallic elements are generally ___________.