Lewis Dot Structures Practice

Lewis Dot Structures Practice - families or groups of the...

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Lewis Dot Structures Practice This worksheet is specifically for those students who have not had chemistry before and for whom Lewis Dot structures is new information, or for students who seek a deeper meaning behind doing Lewis Dot structures. Draw the Lewis Structures for the following sequence of molecules: CH 4 , CF 4 , CCl 4 , CBr 4 And note any trends. Draw the Lewis structures for the following sequence of molecules: CH 3 F, CH 2 F 2 , CHF 3 In what way do these molecules differ from one another? Referring to the molecules drawn above, what would you expect CH 3 Cl to look like? CH 2 Cl 2 ? Now let’s expand this notion to use our knowledge of CO 2 structure and apply it to CS 2 . Draw the structure for CO 2 and for CS 2 . Any similarities? Consider H 2 S. I’ll tell you that it’s an exception to the trends, but even so, knowing the trend still helps us. What molecule do you suspect H 2 S looks like? The point of this practice is to learn, or begin to truly understand, the trends and similarities that exist among
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Unformatted text preview: families or groups of the periodic table while building confidence via repeating themes. This worksheet may take multiple days to complete, or it may take an hour, depending on your understanding. The time doesn’t matter in this practice—it’s not a race. What matters is the act of doing the practice, becoming familiar with these atoms, their valence electrons, and how they combine with other atoms, then noticing trends across the examples shown. Then, you’ll be in better position for tackling new molecules and understanding their arrangements. By the end of Chapter 3 studies, you’ll be in a position to visualize the shapes of these molecules—that is of value because shape and arrangement of atoms and electrons relates to reactivity, which relates to stability....
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