Periodic Table

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Across
  1. 2. family group 1 or 1A
  2. 5. the elements that are usually poor conductors of heat and electricity
  3. 10. a region in an atom where there is a high probability of finding electrons
  4. 11. a negatively charged subatomic particle found in the energy level of an atom
  5. 13. family group 17 or 7A
  6. 15. family group 16 or 6A
  7. 16. a vertical column of elements in the periodic table
  8. 17. gas family group 18 or 8A
  9. 18. a horizontal row of elements in the periodic table
Down
  1. 1. the elements that are good conductors of heat and electricity
  2. 3. earth metal family group 2 or 2A
  3. 4. number the number of protons in the nucleus of an atom
  4. 5. a neutral subatomic particle in the nucleus of an atom
  5. 6. the center of an atom; made up of protons and neutrons
  6. 7. an element that has properties of both a metal and nonmetal
  7. 8. the smallest particle that has the properties of an element
  8. 9. a positively charged subatomic particle in the nucleus of an atom
  9. 12. law the properties of elements tend to repeat in a regular pattern when elements are arranged in order of increasing atomic number
  10. 14. level any of the possible energies an electron may have in an atom