Lecture 8.31.09

Lecture 8.31.09 - Monday, August 31 W hich st at e m e n t...

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Monday, August 31 CHEM 1251, Fall 2009 1 1 Which statement, if any, about the periodic table is not true ? a. Elements in a group have similar properties. b. Elements in a row have similar properties. c. Potassium is a metal. d. Chlorine has more electrons than fluorine. e. All of the above statements are true. 2 Which statement, if any, about the periodic table is not true ? a. Elements in a group have similar properties. b. Elements in a row have similar properties. c. Potassium is a metal. d. Chlorine has more electrons than fluorine. e. All of the above statements are true. 3 Figure 2.16 4 What is the correct formula for a compound made of out of aluminum and oxygen ? Write the formula on your own, then compare to possible answers in next slide . . . 5 a. AlO 3 b. Al 3 O c. Al 2 O 3 d. Al 3 O 2 What is the correct formula for a compound made of out of aluminum and oxygen ? 6 a. AlO 3 b. Al 3 O c. Al 2 O 3 d. Al 3 O 2 What is the correct formula for a compound made of out of aluminum and oxygen ?
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Lecture 8.31.09 - Monday, August 31 W hich st at e m e n t...

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