Multiple Choice
In fluorescence, how do the energies of excitation and emission compare? Which is greater?
22
views
15. Chemical Kinetics
Energy Diagrams
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which statement best describes the transitions between the energy levels shown in the diagram for an electron in this atom or molecule?
A
An electron can only occupy the highest energy level shown in the diagram.
B
An electron can move continuously between any two energy levels without restriction.
C
An electron can only move between these levels by absorbing or emitting a specific amount of energy equal to the difference between the levels.
D
An electron loses energy when it moves to a higher energy level.
Verified step by step guidance1
Understand that electrons in atoms or molecules occupy discrete energy levels, meaning they cannot exist at energies between these levels.
Recognize that when an electron transitions between energy levels, it must absorb or emit energy exactly equal to the difference between the initial and final energy levels. This energy is often in the form of a photon.
Recall that electrons do not move continuously between energy levels; instead, they 'jump' from one level to another without existing in intermediate states.
Note that when an electron moves to a higher energy level, it absorbs energy, and when it moves to a lower energy level, it emits energy.
Conclude that the correct description is that an electron can only move between these levels by absorbing or emitting a specific amount of energy equal to the difference between the levels.
Related Videos
Related Practice
Energy Diagrams practice set
Problem sets built by lead tutorsExpert video explanations