Periodic Table Families

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Across
  1. 3. A subatomic particle that has a positive charge
  2. 6. A column of the periodic table.
  3. 7. All group 1 elements, except for hydrogen.
  4. 9. The number of protons in the nucleus of an atom.
  5. 13. A subatomic Particle that has a negative charge.
  6. 17. Less reactive, silver colored, more dense, found combined with other elements.
  7. 18. of Protons and Neutrons
  8. 20. Atom of the same element that have different number of neutrons.
Down
  1. 1. All metals moderate range of reactivity
  2. 2. All group 3-12 Elements
  3. 4. nonmetals, very reactive, poor conductors of heat.
  4. 5. Extremely reactive,shiny and silver in color, low density, soft.
  5. 8. Are more of these elements than any other
  6. 10. Have characteristics of both metals and non-metals
  7. 11. 1. Protons 2. Neutrons 3. Electrons
  8. 12. All Group 2 element
  9. 14. A subatomic particle that has no charge and is found in the nucleus of an atom.
  10. 15. All group 17 elements
  11. 16. Unreactive nonmetals, colorless, order less, gasses and found in the Earth's atmosphere.
  12. 19. smallest particle of a element