(a)
Interpretation:
The meaning of fluorescence is to be stated.
Concept introduction:
When a substance absorbs radiation or light, it may emit or reflect it back.
(b)
Interpretation:
The meaning of phosphorescence is to be stated.
Concept introduction:
When a substance absorbs radiation or light, it may or may not emit it back.
(c)
Interpretation:
The meaning of resonance fluorescence is to be stated.
Concept introduction:
The atom can interact with fields of same frequency as them.
(d)
Interpretation:
The meaning of singlet state is to be stated.
Concept introduction:
There are magnetic spins on electrons in an atom. The magnetic spin can either be positive or negative.
(e)
Interpretation:
The meaning of triplet state is to be stated.
Concept introduction:
There are negative and positive magnetic spins on each electron in an atom.
(f)
Interpretation:
The meaning of vibrational relaxation is to be stated.
Concept introduction:
When a substance absorbs radiation or light, the molecules get excited. Then the energy is reflected back after some time.
(g)
Interpretation:
The meaning of internal conversion is to be stated.
Concept introduction:
The molecules get to the excited state by absorbing energy and come back to ground state by emitting this energy.
(h)
Interpretation:
The meaning of external conversion is to be stated.
Concept introduction:
The molecules get to the excited state by absorbing radiation and come back to ground state by emitting this radiation.
(i)
Interpretation:
The meaning of intersystem crossing is to be stated.
Concept introduction:
There is a possibility of changing states from singlet state to triplet state. It is only possible when spin orbit coupling is present.
(j)
Interpretation:
The meaning of predissociation is to be stated.
Concept introduction:
The bond of any molecule can be broken due to its unstable excited state.
(k)
Interpretation:
The meaning of dissociation is to be stated.
Concept introduction:
The bond of any molecule can be broken due to excessive absorption of energy.
(l)
Interpretation:
The meaning of quantum yield is to be stated.
Concept introduction:
The numbers of photons absorbed and emitted are different. These numbers are needed to find the yield of a substance.
(m)
Interpretation:
The meaning of chemiluminescence is to be stated.
Concept introduction:
The light that is absorbed by the molecules of a substance can be emitted because of different ways.
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Chapter 15 Solutions
PRINCIPLES OF INSTRUMENTAL ANALYSIS
- Steps and explanation please.arrow_forwardHow could you distinguish between each pair of compounds below using IR? For each pair citeone bond and it’s frequency that you could use to distinguish between them. Please provide thorough analysis to apply into further problems.arrow_forwardSteps and explanation please.arrow_forward
- Provide the unknown for the given dataarrow_forwardProvide the unknown for the given data.arrow_forwardElectron Arrangement A. Fill in the following chart relating to levels, sublevels and orbitals. Levels (n) 1 Sublevels # of Orbitals per sublevel 2 3 4 # of Electrons per sublevel Total Electrons per level Complete: B. Answer the following questions related to levels, sublevels, orbitals and electrons. 1. How many sublevels are in energy level 2? 2. How many orbitals are in a 4f sublevel? 3. How many electrons can level 3 hold? 4. How many orbitals are in level 4? 5. How many electrons can sublevel 2p hold? 11arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningPhysical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,