Chapter 4 Review & Crossword

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Across
  1. 7. A horizontal row on the periodic table.
  2. 9. Group 17.
  3. 10. Lanthanides and actinides are also called __ __ __.
  4. 12. Has properties of both metals and nonmetals.
  5. 14. Half the distance from center to center of two like atoms that are bonded together.
  6. 16. A reaction that affects the nucleus of an atom.
  7. 18. Can be squeezed into a wire.
  8. 25. Elements in the same group have similar __.
  9. 28. The reduction of the attractive force between a positively charged nucleus and its outermost electrons due to the cancellation of some of the positive charge by the negative charges of the inner electrons.
  10. 29. An element with electrons filling in the d-orbital is called a __ __.
  11. 30. The number of valence electrons of a noble gas.
  12. 32. An element in the s-block or p-block of the periodic table.
  13. 35. All the elements in a period have the same number of __ __.
  14. 36. A mixture of two or more metals.
  15. 37. Aluminum has __ valence electrons.
Down
  1. 1. Elements with atomic number between 58 and 71.
  2. 2. An electron that is found in the outermost shell of an atom and that determines the atom's chemical properties.
  3. 3. This trend doesn't follow the rest as you go across a period; it increases, then decreases, then increases, then decreases again.
  4. 4. The elements with atomic number between 89 and 102.
  5. 5. A vertical column on the periodic table.
  6. 6. Sodium has __ valence electron.
  7. 8. Can be hammered or rolled into sheets.
  8. 11. Group 2 elements.
  9. 13. A measure of the ability of an atom in a chemical compound to attract electrons.
  10. 15. The ionization energy __ as you go across a period.
  11. 17. Group 1 elements.
  12. 19. The energy change that occurs when a neutral atom gains an electron.
  13. 20. Group 18.
  14. 21. Gold is in period __.
  15. 22. The energy required to remove an electron from an atom or ion.
  16. 23. The law that states that the repeating physical and chemical properties of elements change periodically with their atomic number.
  17. 24. Elements in group __ have electron configurations that end in ns2np5.
  18. 26. Another name for a group.
  19. 27. Invented the first periodic table.
  20. 31. Alkaline earth metals have __ valence electrons.
  21. 33. The number of groups on the periodic table.
  22. 34. The electronegativity __ as you move down a group on the periodic table.