Suppose you built a scale-model atom in which the nucleus was the size of a tennis ball. About how far would the cloud of electrons extend?

Suppose you built a scale-model atom in which the nucleus was the size of a tennis ball. About how far would the cloud of electrons extend? 




A) several centimeters
B) a few meters
C) a few tens of meters
D) several kilometers
E) to the Sun


Answer: D


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