Jablonski Diagram Quiz

What is the process by which a molecule absorbs light at one wavelength and then emits light at a longer wavelength almost immediately?

• Fluorescence

• Reflection

• Emission

• Absorption

Explain why fluorescence is a fast process compared to phosphorescence.

• Fluorescence involves a slower transition of electrons compared to phosphorescence.

• Fluorescence is a result of longer-lived excited states compared to phosphorescence.

• Fluorescence is a result of higher energy levels compared to phosphorescence.

• Fluorescence involves a faster transition of electrons compared to phosphorescence.

What is the phenomenon where a molecule undergoes a transition from the singlet state to the triplet state?

• Extraterrestrial crossing

• Interstellar transition

• Intersystem crossing

• Intramolecular bonding

Describe the difference between fluorescence and phosphorescence in terms of the duration of the excited state.

• Chemiluminescence

• Phosphorescence

• Incandescence

• Bioluminescence

What is the process by which a molecule transitions from the excited singlet state to the ground state by emitting a photon?

• Photosynthesis

• Chemiluminescence

• Bioluminescence

• Fluorescence

Explain why intersystem crossing is more likely to occur in heavy atoms or molecules with heavy atoms.

• Heavy atoms have a lower probability of intersystem crossing due to their smaller spin-orbit coupling.

• Intersystem crossing is more likely to occur in light atoms due to their larger spin-orbit coupling.

• Heavy atoms or molecules with heavy atoms have a higher probability of intersystem crossing due to their larger spin-orbit coupling.

• Molecules with heavy atoms have a lower probability of intersystem crossing due to their smaller spin-orbit coupling.