EXSET_5 - Swieter; p1 of 4 CHM1040 Exercise Set 5 QUESTIONS...

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Swieter; p1 of 4 CHM1040 Exercise Set 5 QUESTIONS ABOUT IONIC SUBSTANCES 1. a) Why is the radius of a positive ion smaller than the radius of its parent atom? b) Why do negative ions have larger radii than their parent atoms? 2. How would you expect the sizes of the hydrogen ion (H + ) and the hydride ion (H - ) to compare with that of the He atom? Explain. 3. Certain elements react to form salts by forming their characteristic ions. Based on their positions in the periodic table, predict the charges for the ions expected for the following elements. a ) M g b ) K c ) A l d ) P e ) I f ) T e 4. Based on their positions in the periodic table and the expected charges for their respective characteristic ions predict the formulas for the salts formed by the following pairs of elements. a) Ca and S 8 b) Li and P 4 c) Ga and F 2 d) Mg and N 2 e) Al and O 2 f) Na and H 2 5. Write the notations for the ground state electronic configurations of the following ions: a) O -2 b ) C a +2 c) Co +3 d) Ag + e) I - f ) B i +3 g) Sc +3 h) P
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This note was uploaded on 12/11/2011 for the course CHM 1045 taught by Professor Staff during the Spring '10 term at Santa Fe College.

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EXSET_5 - Swieter; p1 of 4 CHM1040 Exercise Set 5 QUESTIONS...

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