Periodic Table

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Across
  1. 4. They are compose of atoms.
  2. 5. The Non-reactive Elements.
  3. 8. These Elements are Semi-Conductors.
  4. 10. The positive atom.
  5. 11. The smallest part of a substance that cannot be broken down chemically.
Down
  1. 1. These Elements are Dull, Insulators, and they're brittle.
  2. 2. Two or more elements together.
  3. 3. These Elements are Lustrous, Conductors, and they're Malleable.
  4. 5. The neutral atom.
  5. 6. This is defined by the same # of electrons in their outermost shell.
  6. 7. The negative atom.
  7. 9. This is determine by how many valence electron shells that they have.