Why are the atomic masses listed in the periodic table not whole numbers?

A. Scientists have yet to make the precise measurements.
B. The atomic masses are average atomic masses.
C. That would be too much of a coincidence.
D. Today's instruments are able to measure the atomic masses to many decimal places.


Answer: B

Environmental & Atmospheric Sciences

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Which of the following countries currently has the most progressive renewable energy policies and is considered a world leader in solar power?

A) Iceland B) Brazil C) Germany D) the United States E) Spain

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Which of the following segments best illustrates the end of a midlatitude cyclones occlusion process?



A) F-E
B) D-C
C) B-A

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Indicate whether the statement is true or false.

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