Question Detail

CHM 101 Quantum Theory and Atomic Structure Objective Question
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Question

What does the principal quantum number (n) describe about an electron?
Options
A The shape of the orbital
B The orientation of the orbital in space
C The main energy level that an electron occupies
Correct Answer
D The spin direction of the electron
Correct Answer

Option C is the correct answer.

Detailed Explanation

The principal quantum number (n) describes the main energy level or shell that an electron occupies. It can have whole number values (n = 1, 2, 3, 4...). As n increases, the electron spends more time farther from the nucleus and has higher energy.

Hint

This quantum number is roughly equivalent to the energy levels in the Bohr atom.

Question Info

Course: CHM 101
Topic: Quantum Theory and Atomic Structure
Type: Objective
Difficulty: Not specified
Question 1512 of 1872
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