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Q1. Which of the following particles has the least mass? (2021) 2021
Solution:
The electron has the least mass compared to protons and neutrons.
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Q2. What is the maximum number of electrons in the d subshell? (2022) 2022
Solution:
The d subshell can hold a maximum of 10 electrons.
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Q3. What is the maximum number of electrons that can occupy the n=3 shell? (2021) 2021
Solution:
The maximum number of electrons in a shell is given by the formula 2n². For n=3, it is 2(3)² = 18.
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Q4. How many orbitals are present in the d-subshell? (2023)
Solution:
The d-subshell has 5 orbitals.
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Q5. What is the value of the azimuthal quantum number (l) for a p-orbital? (2015)
Solution:
The azimuthal quantum number (l) for a p-orbital is 1.
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Q6. What is the maximum number of electrons that can occupy the n=3 shell? (2022) 2022
Solution:
The maximum number of electrons in a shell is given by the formula 2n². For n=3, it is 2(3)² = 18.
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Q7. Which of the following elements has the electronic configuration [Ne]3s²? (2016)
Solution:
Magnesium has the electronic configuration [Ne]3s².
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Q8. What is the value of the azimuthal quantum number (l) for a d orbital? (2021) 2021
Solution:
The azimuthal quantum number l for d orbitals is 2.
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Q9. Which quantum number describes the orientation of an orbital? (2020) 2020
Solution:
The magnetic quantum number describes the orientation of an orbital.
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Q10. What is the maximum number of electrons in the f-subshell? (2022)
Solution:
The f-subshell can hold a maximum of 14 electrons.
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