Unit 3 Periodicity Round 1

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Across
  1. 2. soft metals that react strongly with water
  2. 6. the tendency of an atom to attract a shared pair of electrons in a covalent bond.
  3. 10. highly reactive and form ionic salts when combined with metals
  4. 13. have properties of both metals and non metals
  5. 16. as you go down a group the first ionization energy ______
  6. 20. net positive charge experienced by outer valence shell electrons from the force of attraction between protons and the force of repulsion between inner core electrons.
  7. 21. the energy required to remove the outermost electron from a species
  8. 23. half the distance between two adjacent nuclei
  9. 24. molecules with the same electron configuration
  10. 25. halogen ion
Down
  1. 1. the amount of energy released when a neutral atom gains an electron to form a negatively charged ion.
  2. 3. a repeating pattern of changing properties that is linked to atomic structure
  3. 4. used to simplify or abbreviate electron configurations
  4. 5. the tendency of an element to lose electrons to form positive ions.
  5. 7. can form ions with different ionic charges
  6. 8. column in the periodic table
  7. 9. located on the left hand side of the periodic table
  8. 11. amazing model that was developed by Mendeleev
  9. 12. the minimum energy required to lose one mole of electrons from one mole of gaseous atoms in the ground state.
  10. 14. blocks in the periodic table
  11. 15. as effective nuclear charge _______ atomic radius decreases
  12. 17. positive ions are ________ in size then their parent atom
  13. 18. when silicon reacts with water it will form an ______ metal oxide.
  14. 19. row in the periodic table
  15. 22. located on the right hand side of the periodic table