Chapter 6 Vocabulary

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Across
  1. 2. this can be also called families or periods
  2. 3. atoms can gain or lose one or more electrons to form _____.
  3. 5. the groups designated with an A.
  4. 7. his periodic table was widely accepted because he predicted the existence and properties of undiscovered elements
  5. 8. what kind of energy is needed to remove an electron from a gaseous lithium atom?
  6. 10. Silicon and germanium are two of the most important ___________.
  7. 12. best Chemistry teacher who has a great humor
  8. 13. the extremely unreactive group.
  9. 14. one of the most important principles in chemistry.
  10. 15. fluorine, chlorine, bromine, iodine, and astatine are part of what group?
  11. 16. the group 2A elements
Down
  1. 1. the groups designated with a B.
  2. 3. two sets of ___________ _____________ ______ known as the lanthanide and actinides series
  3. 4. the statement that there is a periodic repetition of chemical and physical properties of the elements when they are arranged by increasing atomic number.
  4. 6. an element indicates the relative ability of its atoms to attract electrons in a chemical bond is the definition of _______________.
  5. 9. what element is most malleable and ductile?
  6. 11. these elements are on the left of the modern periodic table
  7. 17. which group occupies the upper right side of the periodic table?