Unit 2 Vocab

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Across
  1. 2. Element that conducts heat/electricity and loses electrons
  2. 6. metals Group 1 elements with one valence electron
  3. 7. Rule Orbitals of equal energy are filled individually with parallel spins first
  4. 9. reactivity Tendency of a nonmetal to gain electrons
  5. 12. Measure of an atom's ability to attract shared electrons
  6. 13. radius Distance from the nucleus to the outer electron shell
  7. 14. metals Groups 3–12 elements with variable valence electrons
  8. 17. Region of space where an electron is likely to be found
  9. 20. Element with properties intermediate between metals and nonmetals
  10. 21. reactivity Tendency of a metal to lose electrons
Down
  1. 1. electron Outermost shell electron responsible for bonding
  2. 3. Principle Electrons fill lower energy levels first
  3. 4. earth metals Group 2 elements with two valence electrons
  4. 5. Group 17 nonmetals, highly reactive, 7 valence electrons
  5. 8. Element that is a poor conductor and tends to gain electrons
  6. 10. Negatively charged particle orbiting the nucleus
  7. 11. energy Energy required to remove an electron from an atom
  8. 15. Subdivision of a shell (s, p, d, f)
  9. 16. Electrical property of particles (negative on electrons)
  10. 18. gases Group 18 inert elements with full valence shells
  11. 19. Principal energy level holding electrons