11-2-11 - Chemistry 1A F11 11.2.11 Dr. Shaka Todays Teaser...

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201 Chemistry 1A F11 11.2.11 Dr. Shaka Course Code 40000 Today’s Teaser • Unscramble the letters to make a common word. HYREM Ans. RHYME. • Simple problems can sometimes be tough! If you get stuck on Friday go on to the next problem, without delay . That way you’ll make the best use of your time. • Pay attention to point values. ..
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202 Chemistry 1A F11 11.2.11 Dr. Shaka Course Code 40000 Review Problem • Which would have the higher ionization energy, lithium or rubidium? • We know that hydrogen is anomalously high, but the question is, what is the trend on the way down a column? • The answer is that it gets easier to pull the electron off. • Li: 520.2 kJ/mol. Rb: 403 kJ/mol. • It would be too tricky to compare elements in different columns.
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Chemistry 1A F11 11.2.11 Dr. Shaka Course Code 40000 Review Problem • Which would have the larger atomic radius, lithium or fluorine? • Atomic radius shrinks going across a row. • The only thing we need to check is whether the two elements are, in fact, on the same row. • They are, and so we predict Li will have
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This note was uploaded on 12/12/2011 for the course CHEM 1A taught by Professor Tobias during the Fall '01 term at UC Irvine.

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11-2-11 - Chemistry 1A F11 11.2.11 Dr. Shaka Todays Teaser...

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