“Electrons present in the extra nuclear portion are not stationa...
Correct, option 'C' is the correct statement of Ernest Rutherford. He was a New Zealand-born British physicist who made many important contributions to the field of nuclear physics, including the discovery of the proton. He proposed the Rutherford model of the atom, in which he stated that the atom consists of a small, dense nucleus containing protons and neutrons surrounded by a cloud of electrons. He also proposed that electrons in the extra-nuclear portion revolve around the nucleus at high speed following a circular path, this model is also known as the planetary model of the atom.
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“Electrons present in the extra nuclear portion are not stationa...
Answer:
Who said this?
- The statement was made by Rutherford.
Explanation:
- Electrons, which are negatively charged particles, are present in the extra nuclear portion of an atom.
- These electrons do not remain stationary but revolve around the nucleus of the atom.
- They follow a circular path around the nucleus.
- This statement was proposed by Ernest Rutherford, a British physicist, in his atomic model known as the Rutherford model.
- Rutherford's model was proposed in 1911 and it described the structure of an atom where electrons orbit around a positively charged nucleus.
- This model was a significant advancement in the understanding of atomic structure and laid the foundation for further developments in atomic physics.
Key Points:
- Electrons in the extra nuclear portion of an atom are not stationary.
- They revolve around the nucleus at high speed.
- They follow a circular path.
- This concept was proposed by Rutherford in his atomic model.
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