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How many of these compounds are hypervalent (have an expanded valence around the central atom)? CF4, SF4, PF3, PF5 Enter an integer for the total number of hypervalent compounds (i.e. 1, 2, 3, or 4). Do NOT enter the molecular formulas. Provide your answer below:

How many of these compounds are hypervalent (have an expanded valence around the central atom)? CF4, SF4, PF3, PF5 Enter an integer for the total number of hypervalent compounds (i.e. 1, 2, 3, or 4). Do NOT enter the molecular formulas. Provide your answer below:

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How many of these compounds are hypervalent (have an expanded valence around the central atom)?
C F 4 , S F 4 , P F 3 , P F 5
  • Enter an integer for the total number of hypervalent compounds (i.e. 1, 2, 3, or 4).
  • Do NOT enter the molecular formulas.
Provide your answer below:

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Grading for Numeric Answers Tolerance Some numeric answers to questions need to be exact. For example, the answer to the question "How many days are in a week?" must be exactly 7. In general though, numeric answers are graded as correct if they fall within an acceptable range (or tolerance) of the official correct answer. For example, if the answer to a numeric problem with a tolerance of 2% was 105, then entering any value between approximately 103 and 107 would be graded as correct, as shown in the region shaded green below. The typical grading tolerance in Mastering is 2-3%, although this value may vary (e.g. more lenient) depending on the particular problem. A number line is marked at 100, 105, and 110, where 105 is the properly-rounded answer. A green shaded region extends beyond 105 by 2 percent of this value in each direction. 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