unit 2 vocab

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Across
  1. 4. each of the actual or potential patterns of electron density that may be formed in an atom or molecule by one or more electrons, and that can be represented as a wave function
  2. 6. A particle of electromagnetic radiation with no mass that carries a quantum of energy
  3. 7. an atom or group of atoms with a positive or negative charge
  4. 10. Measures the tendency of an atom to attract a shared pair of electrons
  5. 11. measures the mass of an atom or molecule
  6. 13. subatomic particle with a negative charge
  7. 14. lowest energy level of an atom or particle
  8. 15. amount of energy required to remove an electron from the atom
  9. 17. negatively charged ion
  10. 18. a nuclide of 2 or more of the same element
  11. 19. horizontal row on a periodic table
  12. 20. positively charged ion
Down
  1. 1. the reduction of attracting forces between a nucleus and its outer electrons due to the blocking effect of electrons
  2. 2. only certain values are allowed
  3. 3. vertical row on a periodic table
  4. 5. likelihood an event will happen
  5. 8. area around a nucleus where electrons are found
  6. 9. subatomic particle with a positive charge
  7. 12. subatomic particle with a no charge
  8. 13. energy needed to remove a electron from a negative ion to form a neutral atom or molecule
  9. 16. a state where an atom has higher energy potential than ground state
  10. 17. one-half the distance between the nuclei of two atoms when joined