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

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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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203 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.
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