Periodic Table Vocabulary

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Across
  1. 5. Found along the 'staircase'. Have properties of both metals and nonmetals
  2. 6. Metals Group 1 elements (except Hydrogen) - most reactive metals on the periodic table
  3. 8. A subatomic particle that is neutral and that is found in the
  4. 11. Metals groups 3-12 located in the middle of the periodic table
  5. 12. of an atom.
Down
  1. 1. Number The number of protons in the nucleus of an atom of an element
  2. 2. Positively charged particle in the nucleus of an atom
  3. 3. of an atom
  4. 4. A tiny, negatively charged particle that moves around the
  5. 7. EarthMetals group 2 elements not as reactive as group 1
  6. 9. brittle , dull, poor conductors of heat and electricity; located on the right side of the periodic table
  7. 10. Number The total number of protons and neutrons in an atom's nucleus