Bohr Radius
Bohr radius a_0 for hydrogen represents:
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More atoms and nuclei Practice Questions
Bohr radius a0 approximately equals?
Bohr radius a0 approximately equals?
A neutron-rich nucleus undergoes beta-minus decay inside a detector, and a student is asked what par...
A neutron-rich nucleus undergoes beta-minus decay inside a detector, and a student is asked what par...
Following an alpha or beta emission, a daughter nucleus is often left in an excited state and subseq...
Following an alpha or beta emission, a daughter nucleus is often left in an excited state and subseq...
In a nuclear reactor, a uranium-235 nucleus captures a slow neutron and splits into lighter fragment...
In a nuclear reactor, a uranium-235 nucleus captures a slow neutron and splits into lighter fragment...
The Sun generates its enormous power by fusing hydrogen nuclei into helium at its core, and a studen...
The Sun generates its enormous power by fusing hydrogen nuclei into helium at its core, and a studen...
A researcher considers a singly ionised helium ion with atomic number two behaving like a hydrogen-l...
A researcher considers a singly ionised helium ion with atomic number two behaving like a hydrogen-l...
A wooden artefact recovered from an excavation shows a carbon-14 activity that is one-fourth of the ...
A wooden artefact recovered from an excavation shows a carbon-14 activity that is one-fourth of the ...
Given that the mass defect of a helium-4 nucleus is about 0.0304 u, an examiner asks candidates to f...
Given that the mass defect of a helium-4 nucleus is about 0.0304 u, an examiner asks candidates to f...
Looking at the binding-energy-per-nucleon curve, a student notices it peaks near a certain mass numb...
Looking at the binding-energy-per-nucleon curve, a student notices it peaks near a certain mass numb...
A radioactive sample initially contains 8 billion nuclei of an unstable isotope, and after three suc...
A radioactive sample initially contains 8 billion nuclei of an unstable isotope, and after three suc...
A radioactive isotope used in medical imaging has a half-life of 6 hours, and a technician needs its...
A radioactive isotope used in medical imaging has a half-life of 6 hours, and a technician needs its...
A freshly prepared source contains a large number of identical unstable nuclei, and a researcher obs...
A freshly prepared source contains a large number of identical unstable nuclei, and a researcher obs...
About This Question
- Subject
- physics
- Chapter
- atoms and nuclei
- Topic
- bohr radius
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Most probable electron-nucleus distance in ground state
In the Bohr model, the Bohr radius a0 is the radius of the lowest-energy electron orbit (n=1). From a quantum mechanical perspective, the radial probability density P(r)=4πr2∣ψ∣2 for the 1s state of hydrogen is maximum at r=a0. Therefore, a0 is the most probable distance of the electron from the nucleus in the ground state.
This easy difficulty physics question is from the chapter atoms and nuclei, covering the topic of bohr radius. It appeared in the 2025 exam.
Looking for more practice? Explore all physics questions or browse atoms and nuclei questions on RankGuru.