If I Were to Scale Up an Atom Until It

question 10

Multiple Choice

If I were to scale up an atom until it were the size of a sports arena, the space filled by the positive charges inside the atom (according to the work of Ernest Rutherford early in this century) would be:

• A) as big as the entire stadium (and very thinly spread out)
• B) as big as the space filled by all the negative charges (that's why the atom is neutral)
• C) very small (perhaps the size of a soccer ball) and in the middle
• D) an extremely thin layer spread completely around the outer walls of the stadium
• E) this question cannot be answered (even roughly) without knowing how many electrons the atom has

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