Class 9 Exam > Class 9 Questions > Find the incorrect statement.a)Proton is a un...
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Find the incorrect statement.
- a)Proton is a universal particle.
- b)Neutron is slightly heavier than proton
- c)Neutrons were known at the time of Rutherford performed the scattering experiment
- d)Most of the space in atom is empty
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Find the incorrect statement.a)Proton is a universal particle.b)Neutro...
The correct answer is option 'A'.
Proton is not a universal particle, it is present in the atomic nucleus of all elements except for hydrogen-1.
Neutron is slightly heavier than proton, a neutron has a slightly greater mass than a proton.
Neutrons were known at the time of Rutherford performed the scattering experiment, James Chadwick, in 1932, discovered the neutron.
Most of the space in an atom is empty, atoms are mostly empty space, with electrons orbiting the nucleus, which is composed of protons and neutrons.
Therefore, option A is the incorrect statement.
Most Upvoted Answer
Find the incorrect statement.a)Proton is a universal particle.b)Neutro...
The Incorrect Statement:
The incorrect statement is option 'A': Proton is a universal particle.
Explanation:
- Protons are not universal particles. They are subatomic particles that are present in the nuclei of atoms.
- Let's discuss the other options to understand why they are correct.
Option B:
Neutron is slightly heavier than proton
- This statement is correct. Neutrons are subatomic particles that are also present in the nuclei of atoms. They have a mass slightly greater than that of protons.
Option C:
Neutrons were known at the time Rutherford performed the scattering experiment.
- This statement is also correct. Neutrons were discovered by James Chadwick in 1932, while Rutherford performed his scattering experiment in 1911. So, neutrons were known at the time of Rutherford's experiment.
Option D:
Most of the space in the atom is empty.
- This statement is also correct. According to the Rutherford model of the atom, which was proposed based on his scattering experiment, an atom consists of a small, dense, positively charged nucleus at the center, and the electrons revolve around the nucleus in orbits. The size of the nucleus is very small compared to the size of the atom, so most of the space in an atom is indeed empty.
Conclusion:
The incorrect statement is option 'A' because protons are not universal particles; they are subatomic particles found in the nuclei of atoms.
The incorrect statement is option 'A': Proton is a universal particle.
Explanation:
- Protons are not universal particles. They are subatomic particles that are present in the nuclei of atoms.
- Let's discuss the other options to understand why they are correct.
Option B:
Neutron is slightly heavier than proton
- This statement is correct. Neutrons are subatomic particles that are also present in the nuclei of atoms. They have a mass slightly greater than that of protons.
Option C:
Neutrons were known at the time Rutherford performed the scattering experiment.
- This statement is also correct. Neutrons were discovered by James Chadwick in 1932, while Rutherford performed his scattering experiment in 1911. So, neutrons were known at the time of Rutherford's experiment.
Option D:
Most of the space in the atom is empty.
- This statement is also correct. According to the Rutherford model of the atom, which was proposed based on his scattering experiment, an atom consists of a small, dense, positively charged nucleus at the center, and the electrons revolve around the nucleus in orbits. The size of the nucleus is very small compared to the size of the atom, so most of the space in an atom is indeed empty.
Conclusion:
The incorrect statement is option 'A' because protons are not universal particles; they are subatomic particles found in the nuclei of atoms.
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Find the incorrect statement.a)Proton is a universal particle.b)Neutron is slightly heavier than protonc)Neutrons were known at the time of Rutherford performed the scattering experimentd)Most of the space in atom is emptyCorrect answer is option 'A'. Can you explain this answer?
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