Unit 2 Vocabulary Crossword

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Across
  1. 2. a group of chemical elements in Group 2 of the periodic table, including beryllium, magnesium, calcium, strontium, barium, and radium
  2. 5. the electrons in the outermost energy shell of an atom,
  3. 6. one of the seven reactive nonmetal elements in Group 17 of the periodic table
  4. 9. a group of unreactive, gaseous elements in Group 18 of the periodic table
  5. 10. any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table
Down
  1. 1. a group of highly reactive elements in Group 1 of the periodic table,
  2. 3. the distance from the center of an atom's nucleus to its outermost electron shell.
  3. 4. the process where an atom or molecule gains or loses electrons, resulting in a net electrical charge and the formation of an ion.
  4. 7. the degree to which an element tends to gain electrons and form negative ions in chemical reactions.
  5. 8. a horizontal row on the periodic table