Multiple Choice
What is the wavelength, in nanometers, of a photon with 5.11 × 10⁻¹⁹ J of energy?
9. Quantum Mechanics
Wavelength and Frequency
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following statements is/are true concerning electrons?
A
Single electrons interfere with themselves.
B
The wave nature of the electron is exhibited only when electrons are passed through a slit.
C
The wave nature of an electron prevents electrons from crashing into the nucleus as predicted by classical mechanics.
D
Both the first and second statements are correct.
E
Both the first and third statements are correct.
F
Both the second and third statements are correct.
Verified step by step guidance1
Understand the concept of wave-particle duality: Electrons exhibit both wave-like and particle-like properties. This dual nature is fundamental to quantum mechanics.
Explore the phenomenon of self-interference: Single electrons can interfere with themselves, demonstrating their wave-like nature. This is observed in experiments like the double-slit experiment.
Examine the conditions for wave nature exhibition: The wave nature of electrons is not limited to passing through a slit. It can be observed in various scenarios, such as diffraction and interference patterns.
Consider the role of wave nature in atomic structure: The wave nature of electrons helps explain why they do not crash into the nucleus. Quantum mechanics describes electrons as existing in probability clouds or orbitals, rather than fixed paths.
Evaluate the statements: Based on the understanding of electron behavior, the first statement about self-interference and the third statement about preventing crashing into the nucleus are correct.
Related Videos
Related Practice
Wavelength and Frequency practice set
Problem sets built by lead tutorsExpert video explanations