Which of the following can be concluded about a gold atom from the deflection of this $ ext{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 $ ext{α}$ particle?
A. The atom contains electrons.
B. The atom has zero char... show full transcript
Worked Solution & Example Answer:Which of the following can be concluded about a gold atom from the deflection of this $ ext{α}$ particle?
A - Edexcel - A-Level Physics - Question 9 - 2023 - Paper 1
Step 1
D. The nucleus of the atom is positively charged.
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Answer
The correct statement concerning a gold atom from the deflection of the extα particle is that the nucleus of the atom is positively charged. This conclusion stems from the experiment by Rutherford, where positively charged extα particles are repelled or deflected by the positively charged nucleus of the atom. Since like charges repel, the deflection indicates the presence of a positive charge within the nucleus of the gold atom.