(a)
Interpretation:
More stable nuclide has to be identified among the given pair.
Concept Introduction:
Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.
Nuclear stability can be explained based on neutron to proton ratio (N/Z) in the nucleus.
For a stable atoms having low
For a stable nucleus N/Z ratio is one and which lies in the belt of stability of graph of number of protons to number neutrons.
When an isotope is above the belt of stability, N/Z ratio is high and there exists a beta emission to decrease the stability.
General rules for predicting the nuclear stability is given below,
- If the nucleus contains 2, 8,20,50,82 or 126 protons or neutrons, then they are generally considered as stable than the nuclei that do not possess these numbers.
- If the nuclei has even number of both protons and neutrons, then they are considered as stable as those with odd number of these particles.
- All
isotopes of elements with atomic number higher than 83 are radioactive.
(b)
Interpretation:
More stable nuclide has to be identified among the given pair.
Concept Introduction:
Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.
Nuclear stability can be explained based on neutron to proton ratio (N/Z) in the nucleus.
For a stable atoms having low atomic number, n/p ratio is close to 1. When atomic number increases N/Z becomes greater than 1.
For a stable nucleus N/Z ratio is one and which lies in the belt of stability of graph of number of protons to number neutrons.
When an isotope is above the belt of stability, N/Z ratio is high and there exists a beta emission to decrease the stability.
General rules for predicting the nuclear stability is given below,
- If the nucleus contains 2, 8,20,50,82 or 126 protons or neutrons, then they are generally considered as stable than the nuclei that do not possess these numbers.
- If the nuclei has even number of both protons and neutrons, then they are considered as stable as those with odd number of these particles.
- All isotopes of elements with atomic number higher than 83 are radioactive.
(c)
Interpretation:
More stable nuclide has to be identified among the given pair.
Concept Introduction:
Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.
Nuclear stability can be explained based on neutron to proton ratio (N/Z) in the nucleus.
For a stable atoms having low atomic number, n/p ratio is close to 1. When atomic number increases N/Z becomes greater than 1.
For a stable nucleus N/Z ratio is one and which lies in the belt of stability of graph of number of protons to number neutrons.
When an isotope is above the belt of stability, N/Z ratio is high and there exists a beta emission to decrease the stability.
General rules for predicting the nuclear stability is given below,
- If the nucleus contains 2, 8,20,50,82 or 126 protons or neutrons, then they are generally considered as stable than the nuclei that do not possess these numbers.
- If the nuclei has even number of both protons and neutrons, then they are considered as stable as those with odd number of these particles.
- All isotopes of elements with atomic number higher than 83 are radioactive.
(d)
Interpretation:
More stable nuclide has to be identified among the given pair.
Concept Introduction:
Nuclear stability means that the nucleus is stable meaning that it does not spontaneously emit any kind of radioactivity.
Nuclear stability can be explained based on neutron to proton ratio (N/Z) in the nucleus.
For a stable atoms having low atomic number, n/p ratio is close to 1. When atomic number increases N/Z becomes greater than 1.
For a stable nucleus N/Z ratio is one and which lies in the belt of stability of graph of number of protons to number neutrons.
When an isotope is above the belt of stability, N/Z ratio is high and there exists a beta emission to decrease the stability.
General rules for predicting the nuclear stability is given below,
- If the nucleus contains 2, 8,20,50,82 or 126 protons or neutrons, then they are generally considered as stable than the nuclei that do not possess these numbers.
- If the nuclei has even number of both protons and neutrons, then they are considered as stable as those with odd number of these particles.
- All isotopes of elements with atomic number higher than 83 are radioactive.
Want to see the full answer?
Check out a sample textbook solutionChapter 24 Solutions
CHEMISTRY:MOLECULAR...(LL) W/ALEKS
- 4. Propose a synthesis of the target molecules from the respective starting materials. a) b) LUCH C Br OHarrow_forwardThe following mechanism for the gas phase reaction of H2 and ICI that is consistent with the observed rate law is: step 1 step 2 slow: H2(g) +ICI(g) → HCl(g) + HI(g) fast: ICI(g) + HI(g) → HCl(g) + |2(g) (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. + → + (2) Which species acts as a catalyst? Enter formula. If none, leave box blank: (3) Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: (4) Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k[A][B]"..., where '1' is understood (so don't write it) for m, n etc.) Rate =arrow_forwardPlease correct answer and don't use hand rating and don't use Ai solutionarrow_forward
- 1. For each of the following statements, indicate whether they are true of false. ⚫ the terms primary, secondary and tertiary have different meanings when applied to amines than they do when applied to alcohols. • a tertiary amine is one that is bonded to a tertiary carbon atom (one with three C atoms bonded to it). • simple five-membered heteroaromatic compounds (e.g. pyrrole) are typically more electron rich than benzene. ⚫ simple six-membered heteroaromatic compounds (e.g. pyridine) are typically more electron rich than benzene. • pyrrole is very weakly basic because protonation anywhere on the ring disrupts the aromaticity. • thiophene is more reactive than benzene toward electrophilic aromatic substitution. • pyridine is more reactive than nitrobenzene toward electrophilic aromatic substitution. • the lone pair on the nitrogen atom of pyridine is part of the pi system.arrow_forwardThe following reactions are NOT ordered in the way in which they occur. Reaction 1 PhO-OPh Reaction 2 Ph-O -CH₂ heat 2 *OPh Pho -CH2 Reaction 3 Ph-O ⚫OPh + -CH₂ Reaction 4 Pho Pho + H₂C OPh + CHOPh H₂C -CH₂ Reactions 1 and 3 Reaction 2 O Reaction 3 ○ Reactions 3 and 4 ○ Reactions 1 and 2 Reaction 4 ○ Reaction 1arrow_forwardSelect all possible products from the following reaction: NaOH H₂O a) b) ОН HO O HO HO e) ОН f) O HO g) h) + OHarrow_forward
- 3. Draw diagrams to represent the conjugation in these molecules. Draw two types of diagram: a. Show curly arrows linking at least two different ways of representing the molecule b. Indicate with dotted lines and partial charges (where necessary) the partial double bond (and charge) distribution H₂N* H₂N -NH2arrow_forwardQuestion 2 of 25 point Question Attempt 3 of Ulimited Draw the structure for 3-chloro-4-ethylheptane. Part 2 of 3 Click and drag to start drawing a structure. Draw the structure for 1-chloro-4-ethyl-3-lodooctane. Click and drag to start drawing a structure. X G X B c Part 3 of 30 Draw the structure for (R)-2-chlorobutane. Include the stereochemistry at all stereogenic centers. Check Click and drag to start drawing a structure. G X A 。 MacBook Pro G P Save For Later Submit Assignment Privacyarrow_forwardPlease correct answer and don't used hand raitingarrow_forward
- In a silicon and aluminum alloy, with 12.6% silicon, what are the approximate percentages of the phases present in the constituent that is formed at the end of solidification? Temperature (°C) 1500 1000 L B+L 1415- α+L 577' 500 1.65 12.6 99.83 α+B B 0 Al 20 40 60 Weight percent silicon 80 Siarrow_forwardPlease correct answer and don't used hand raitingarrow_forwardPlease correct answer and don't used hand raitingarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY