Ionization Energy
Ionization energy corresponds to energy required to move electron from ground state to:
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
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...
When a heavy parent nucleus undergoes alpha decay, it emits a helium nucleus, and a student must sta...
When a heavy parent nucleus undergoes alpha decay, it emits a helium nucleus, and a student must sta...
About This Question
- Subject
- physics
- Chapter
- atoms and nuclei
- Topic
- ionization energy
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Infinite separation
Ionization energy is defined as the minimum energy required to remove an electron from its ground state (n=1) to a point of 'infinite separation' from the nucleus (where n→∞). At infinity, the potential energy is zero and the electron is no longer bound. For hydrogen, this energy is E∞−E1=0−(−13.6eV)=13.6eV.
This easy difficulty physics question is from the chapter atoms and nuclei, covering the topic of ionization energy. It appeared in the 2025 exam.
Looking for more practice? Explore all physics questions or browse atoms and nuclei questions on RankGuru.