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Which of the following can be concluded about a gold atom from the deflection of this α particle? A - Edexcel - A-Level Physics - Question 9 - 2023 - Paper 1
Question 9
Which of the following can be concluded about a gold atom from the deflection of this α particle? A. The atom contains electrons. B. The atom has zero charge. C. ... show full transcript
Worked Solution & Example Answer:Which of the following can be concluded about a gold atom from the deflection of this α particle? A - Edexcel - A-Level Physics - Question 9 - 2023 - Paper 1
Step 1
D. The nucleus of the atom is positively charged.
Answer
The deflection of the α particle indicates that it is repelled by a positively charged area within the gold atom, which can be deduced to be the nucleus. Since α particles, which are positively charged, are deflected, it confirms that the nucleus is also positively charged, supporting the option D.