Physical Chemistry - Atomic Structure

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Q1. What is the principal quantum number of the outermost electron in a chlorine atom? (2022)

Solution:

Chlorine has an atomic number of 17, and its outermost electrons are in the 3rd shell, so n=3.

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Q2. What is the maximum number of electrons that can be accommodated in the p subshell? (2023)

Solution:

The p subshell can hold a maximum of 6 electrons.

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Q3. The uncertainty principle is associated with which of the following scientists? (2023)

Solution:

The uncertainty principle is a fundamental concept in quantum mechanics formulated by Werner Heisenberg.

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Q4. What is the principal quantum number of the outermost electrons in an atom of chlorine? (2022)

Solution:

Chlorine has an atomic number of 17, and its outermost electrons are in the n=3 shell.

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Q5. What is the maximum number of electrons that can be accommodated in the d subshell? (2019)

Solution:

The d subshell can hold a maximum of 10 electrons.

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Q6. Which quantum number is not required to describe the electron in an atom? (2019)

Solution:

Color quantum number is not a valid quantum number for describing electrons in an atom.

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Q7. Which of the following elements has the electron configuration [Ne]3s²3p⁵? (2023)

Solution:

The electron configuration [Ne]3s²3p⁵ corresponds to Chlorine, which has 17 electrons.

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Q8. What is the principal quantum number of the outermost electron in an atom of potassium? (2022)

Solution:

Potassium has an atomic number of 19, and its outermost electron is in the n=4 shell.