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AssignmentMultiple Select

Nuclear Fission and Nuclear Fusion

Question 1 • Foothill-B Period-Chemistry-26/27B

Which statements accurately describe Ernest Rutherford’s experiment? Check all that apply.The positively charged particles were deflected because like charges repel.The positively charged particles were deflected because opposite charges attract.The positively charged particles were deflected by the electron.The positively charged particles were deflected by the proton.The positively charged particles were deflected because the positive charge in the atom was concentrated.The positively charged particles were deflected because the positive charge in the atom was scattered throughout the atom.

Answer
A
The positively charged particles were deflected because like charges repel.
B
The positively charged particles were deflected because opposite charges attract.
C
The positively charged particles were deflected by the electron.
D
The positively charged particles were deflected by the proton.
E
The positively charged particles were deflected because the positive charge in the atom was concentrated.
F
The positively charged particles were deflected because the positive charge in the atom was scattered throughout the atom.

Explanation

Rutherford’s alpha particles had a positive charge, so they were repelled when they came near the atom’s positively charged nucleus; like charges repel. The nucleus contains protons, and the atom’s positive charge is concentrated there, rather than spread throughout the atom. Electrons are negative, but they are not what caused the strong deflections.

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