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Successive Ionization Energies

This homework guide focuses on successive ionization energies as discussed in pages 36-41 of the textbook. It explains the concept of ionization energy, the specific equation for ionization, and how energy requirements change across groups in the periodic table. Key points include the energy needed to remove electrons, group reactivity trends, and noticeable jumps in ionization energy when achieving a noble gas configuration. Students are reminded to complete various worksheets and prepare for the upcoming quiz on matter and trends.

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Successive Ionization Energies

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  1. September 25th 2013 Successive Ionization Energies Notes by: Sarah Elsarty

  2. Homework • Read pages 36-41 (Periodic Trends in Atomic properties) • Hw: finish all worksheets • pgs. 47 #1-18 (review) • Pgs. 48 #1-19, 31, 47,55, 57,66-69 (review) • REMINDER: Quest: matter and trends, next Tuesday October the 1st

  3. What are ionization energies The energy it takes to remove and electron from an atom, in the gaseous state, to become a cation. Cation: a passively charged atom.

  4. Textbook Summary (Pg. 38-9) • Ionization energy: quantity of energy required to remove a single valence electron from an atom or ion in the gaseous state. • General ionization equation: X(g)+energy X+(g)+e • specific example: Li(g)+520 Kj/mol Li+(g)+e- • the unit used is kilojoules per mole.

  5. More energy to remove electron from group 8 and less energy for the group 1.

  6. Worksheet summary • Less energy is required to remove the outermost electrons. (First IE) • Requires more energy for each successive ionization energy. (second IE, third IE and so on) • It take more energy to remove the electron closer to the nucleuses. • Noticeable jump in IE once the atom have reached a noble gas configuration. • Once valence electrons have been removed the radius decreases.

  7. Visual Trend in Periodic Table Lowest Highest Highest Lowest

  8. Periodic Table Trends: Ionization Energyby: Khanacademty http://www.youtube.com/watch?v=ywqg9PorTAw

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