January 2019 NY Regents Chemistry Exam
1 The results of the gold foil experiment led to the conclusion that an atom is
(1) mostly empty space and has a small, negatively charged nucleus
(2) mostly empty space and has a small, positively charged nucleus
(3) a hard sphere and has a large, negatively charged nucleus
(4) a hard sphere and has a large, positively charged nucleus
Solution: Gold foil experiment led to the following conclusions: most of the atom is empty space, inside an atom there is a small, dense, positively charged nucleus.
Answer: 2
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