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Question

The alpha particles used in Rutherford’s experiment are positively charged particles, in fact each one consists of?


A

2 protons and 2 neutrons

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B

1 proton and 2 neutrons

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C

1 proton and 1 neutrons

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D

None of the above

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Solution

The correct option is A

2 protons and 2 neutrons


Explanation for Correct answer:-

Option(a) 2 proton and 2 neutrons:

  • Alpha particles that were used in Rutherford's experiment consist of 2 protons and 2 neutrons.
  • Hence, (a) is correct option.

Explanation for incorrect answer:-

Option(b) 1 proton and 2 neutrons:

  • A particle containing 1 proton and 2 neutrons is called Tritium(H13).
  • Hence, incorrect option.

Option(c) 1 proton and 1 neutrons:

  • A particle containing 1 proton and 1 neutron is called Deuterium(H12).
  • Hence, incorrect option.

Option(d) None of the above:

  • Incorrect option.

Therefore, alpha particles used in Rutherford’s experiment are positively charged particles, in which each one consists of 2 protons and 2 neutrons.


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