14 Periodic Trends 2

14 Periodic Trends 2 - 1 1 Compare the relative sizes of...

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Unformatted text preview: 1 1 Compare the relative sizes of Li (Z=3), its cation, Li + , and its anion, Li- . What would you predict? A) Li < Li + < Li- B) Li- < Li < Li + C) Li + < Li < Li- D) Li + < Li- < Li E) All have the same diameter. In all these selections, size increases in going from left to right. You need to know meaning of < and >. 1s 2s 1s 2s 1s 2s Li Li + Li- 2 Using the partial Periodic Table below as a resource, arrange the following elements in order of decreasing size : Al, C, B, Na, K A) Al>B>C>Na>K B) B>C>Al>Na>K C) K>Na>Al>B>C K Na B Al C Mg I 2 13 14 2 3 4 Group Period Strategy: start with the largest or smallest . 2 4 Homework 2 OWL questions OWL QRT Ch 7: 110 5 Exploration 3: Electron Affinity, GE p. 67 Ionization energy is the energy required to ionize an atom. X X + + e- Electron affinity is the energy required to ionize the anion of an atom. (produces + values for energy) X- X + e- Energy required to remove an electron from the anion of the atom....
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This note was uploaded on 10/16/2009 for the course CHE 129/130 taught by Professor Hanson during the Fall '09 term at SUNY Stony Brook.

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14 Periodic Trends 2 - 1 1 Compare the relative sizes of...

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