Concept explainers
(a)
Interpretation:
The number of valence electrons that are present in Boron atom should be given.
Concept Introduction:
Electron are assigned to orbitals (atomic or molecular) following the Aufbau principle, the Pauli Exclusion Principle, and Hund’s rule.
Core electron are electrons in inner shells.
The outer most shell electron is known as the Valence electron.
(b)
Interpretation: The number of valence electrons that present in Nitrogen should be calculated.
Concept Introduction:
Electron are assigned to orbitals (atomic or molecular) following the Aufbau principle, the Pauli Exclusion Principle, and Hund’s rule.
Core electron are electrons in inner shells.
The outer most shell electron is known as the Valence electron.
(c)
Interpretation: The number of valence electrons that present in Oxygen should be calculated.
Concept Introduction:
Electron are assigned to orbitals (atomic or molecular) following the Aufbau principle, the Pauli Exclusion Principle, and Hund’s rule.
Core electron are electrons in inner shells.
The outer most shell electron is known as the Valence electron.
(d)
Interpretation: The number of valence electronss that present in Fluorine should be calculated.
Concept Introduction:
Electron are assigned to orbitals (atomic or molecular) following the Aufbau principle, the Pauli Exclusion Principle, and Hund’s rule.
Core electron are electrons in inner shells.
The outer most shell electron is known as the Valence electron.
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
Essential Organic Chemistry (3rd Edition)
- 7. Assign all of the protons on the spectrum below. A B 2 C E 2 1 3 6 4 3 2 1 0arrow_forwarde. If (3R,4R)-3,4-dichloro-2,5-dimethylhexane and (3R,4S)-3,4-dichloro-2,5-dimethylhexane are in a solution at the same concentration, would this solution be expected to rotate plane polarized light (that is, be optically active)? Please provide your reasoning for your answer. [If you read this problem carefully, you will not need to draw out the structures to arrive at your answer...]arrow_forward1. How many neighbors does the proton that produces the multiplet below have? 2. 3. اللـ Draw a partial structure from the multiplet below. (The integration of the multiplet is 6) M Using the additivity constants found in appendix G of your lab manual, calculate the approximate chemical shifts of the protons indicated below. (Show your work!!!) B A Br SHarrow_forward
- 1) Suppose 0.1 kg ice at 0°C (273K) is in 0.5kg water at 20°C (293K). What is the change in entropy of the ice as it melts at 0°? To produce the original "water gas" mixture, carbon (in a combustible form known as coke) is reacted with steam: 131.4 kJ + H20(g) + C(s) → CO(g) + H2(g) From this information and the equations in the previous problem, calculate the enthalpy for the combustion or carbon to form carbon dioxide. kindly show me how to solve this long problem. Thanksarrow_forward4. An 'H-NMR of a compound is acquired. The integration for signal A is 5692 and the integration for signal B is 25614. What is the simplest whole number ratio of protons for signals A and B? (Show your work!!!) 5. Assign the carbons in the NMR below as either carbonyl, aromatic, or alkyl. 200 150 100 50 ō (ppm) 1arrow_forwardSpeaking of composite materials, indicate the correct option:(A). Composite materials can only be: metal-polymer or polymer-polymer.(B). Composite materials can be made up of particles, but not fibers or sheets.(C). When the reinforcing particles are uniformly distributed in a composite material, there may be a greater tendency for it to have isotropic properties.(D). None of the above is correct.arrow_forward
- If we are talking about viscoelastic modulus or viscoelastic relaxation modulus in polymers, indicate the correct option.(A). It reports the variation of elastic behavior as a function of time.(B). It is only useful for defining its glass transition temperature.(C). It only allows us to define the polymer degradation temperature.(D). Neither option is correct.arrow_forwardWhen natural light falls perpendicularly on a material A, it has a reflectivity of 0.813%. Indicate the value of the refractive index.arrow_forwardIn piezoelectricity and piezoelectric ceramics, one of the following options is false:(A). Piezoelectricity allows an electrical signal to be transformed into a mechanical one.(B). PbZrO3 is a well-known piezoelectric ceramic.(C). Piezoelectricity and ferroelectricity in general have no relationship.(D). One of the applications of piezoelectricity is sonar.arrow_forward
- (30 MARKS) Give the major product(s ) formed including relevant stereochemistry or the complete reaction conditions for the following reactions. More than one step may be required for each reaction arrow, in which case the steps must be numbered 1), 2) etc. (2 marks each box) h) i) h) OH i) HO H3PO4, heat 2 Brarrow_forwardNonearrow_forwardIndicate which option is false(A). Resistivity has a residual component and a thermal component.(B). In some materials resistivity increases with T and in others it decreases.(C). In insulating materials, resistivity is very low.arrow_forward
- Living By Chemistry: First Edition TextbookChemistryISBN:9781559539418Author:Angelica StacyPublisher:MAC HIGHERChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning