Which isotope in each pair is more stable? Why?(a) 14055Cs or 13355Cs (b) 7935Br or 7835Br(c) 2812Mg or 2412Mg(d) 147N or 187N

Q: A 6.2 mg sample of 90Sr (half-life 29.12 y) is in secular equilibrium with its daughter 90Y…

A: a) At equilibrium        λsrNsr = λyNy              Nsr = λyNyλsr                     = 29.12y365…

Q: What is the daughter nucleus produced when 167 Tm undergoes electron capture? Replace each question…

A:

Q: What is the binding energy in kJ/mol nucleons for bromine-81? |kJ/mol nucleons 35 H+ 46,n- The…

A: Mass of Br-81 = 80.91630

Q: TRANSURANIC/ SUPERHEAVY NUCLEAR REACTION Mendelevium (G5{Md) was formed by bombarding einsteinium…

A: The solution is given below -

Q: Explain why the neutron-to-protonratio of stable nuclei increases as the atomic numberincreases.

A: To find: Why the neutron to proton ratio of stable nuclei increases as the atomic number increases

Q: 6.7 A neutral K meson decays in flight via K° n*. If the negative pion is produced at rest,…

A:

Q: If 2.8x10-10% of the atoms of a radioactive isotope disintegrate in 1.0 yr, what is the decay…

A: As the radioactive decay is first order reaction, the expression is given as, Here,  N0 indicates…

Q: What is the daughter nucleus produced when 167 Tm undergoes electron capture? Replace each question…

A: electron capture is a process in which proton rich nucleus absorb inner core electron and convert it…

Q: What is the binding energy in kJ/mol Ga for gallium-69? |kJ/mol 31 H+ 38,n→°Ga The required masses…

A: The reaction given is

Q: What is the binding energy in kJ/mol nucleons for lithium-6? ______ kJ/mol nucleons 3+ 3 The…

A: Given data, Mass of proton = 1.00783 g/mol Mass of neutron = 1.00867 g/mol Mass of Li = 6.01500…

Q: What is the half life of a radioactive sample , if 3/4 of its nuclei decay in 2 years ?

A: Given:The amount of nuclear decay in 2 years = ¾ th of initial massAssume that the initial mass =…

Q: What is the daughter nucleus in the reaction below? * 85 209 At = +2*He 83 205Bİ 86 209Rn 81 207TI…

A:

Q: A sample of cobalt-60 (t1/2=5.27 yr), a powerful γ emit-ter used to treat cancer, was purchased by…

A: Half life of radioactive element-is the time needed for given number of its nuclei to decay exactly…

Q: What is the binding energy in kJ/mol nucleons for antimony-123? |k]/mol nucleons 51 H+ 72,n Sb The…

A: Answer: 1.0075×10^11 KJ/mol

Q: If a mineral contains 1.56 % of its parent isotope, how many half-lives have gone?

A: Half Life Real analysis by the simple Concentration Analysis is mentioned in step-2  1st order…

Q: Americuium-241

A: From the given data, we can see that the initial amount of Americuium-241 in the smoke detectors is…

Q: etermine the minimum energy (in MeV) needed to remove just one proton from the nucleus N. (Let the…

A:

Q: What is the binding energy in kJ/mol nucleons for lanthanum-138? |k]/mol nucleons 57 H+ 81;n La The…

A: The reaction given is, =>

Q: The age of a tree trunk is estimated using radioisotope dating. Hypothetically, instead of carbon…

A:

Q: There are initially 10 mCi of 19Os which undergoes B- decay with a half-life of 15.4 d into 191mir.…

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you…

Q: What is the binding energy in kJ/mol nucleons for antimony-123? kJ/mol nucleons 51 H+ 72;n–Sb The…

A: Answer: During a nuclear reaction, some mass of the nucleus loses itself and this lost mass gets…

Q: a which of the following nuclei decay by 8 decay? (Select all that apply.) 60 BN PF b which of the…

A: Beta decay occurs in those nuclei in which either the number of protons or the number of neutrons is…

Q: What is the specific activity (in Ci/g) if 1.65 mg of anisotope emits 1.56X10⁶ α particles per…

A:

Q: What is the binding energy in kJ/mol Ga for gallium-71? kJ/mol 31 H+ 40,n Ga The required masses…

A: Given-> Masses -> 1H1 = 1.00783 g/mole 0n1= 1.00867 g/mole 31Ga71= 70.92490 g/mole

Q: What is the binding energy in kJ/mol Cu for copper-63? kJ/mol 29 H+34 n Cu The required masses…

A:

Q: What is the binding energy in kJ/mol Br for bromine-79?    kJ/mol 35+ 44 The required masses…

A: Br-79 contains 35 protons and 44 neutrons. Mass of 6.023 × 1023 protons = 1.00783 g Mass of 1 proton…

Q: What daughter nucleus is produced when a 5526Fe nucleus undergoes electron capture? a. 5527Co b.…

A: Electron Capture (K-capture): In this process, an electron is absorbed from the K-shell and forms a…

Q: Which of the following is the most likely decay mode for 24 Cf? 98

A: For 248Cf98 the number of protons and neutrons are calculated as : Number of protons = Atomic number…

Q: What is the binding energy in kJ/mol nucleons for gallium-71? k]/mol nucleons 31;H+ 40;n3Ga The…

A: We will first calculate the mass defect. And using that we can calculate the binding energy.  ∆m x…

Q: What is the binding energy in kJ/mol nucleons for antimony-121? kJ/mol nucleons 51 H+ 70;n-→ Sb The…

A: Nuclear binding energy is the amount of energy associated during formation of a nucleus from it's…

Q: 3. If 175 undecayed nuclei remained from a sample of 2800 nuclei, how many half lives passed?

A:

Q: The following nuclei do not lie in the band of stability. How would they be expected to decay? a.…

A: For the nuclei that do not lie in the band of stability, the decay can be predicted using the…

Q: A radiopharmaceutical has a biological half-life of 17 hr and an effective decay constant of 0.30…

A: When a radiopharmaceutical takes time to decrease to half of its initial value, then it undergoes…

Q: Q102) What is the nuclear binding energy (in MeV) of the cadmium-100 nuclide? The atomic mass of…

A: Given that -  Atomic mass of cadmium-100 = 99.92029 amu  Atomic number of Cd-100 = 48  Then number…

Q: Representations of three nuclei (with neutrons gray andprotons purple) are shown below. Nucleus 1 is…

A: The nuclear process that deals with the conversion of an unstable nucleus to a more stable nucleus…

Q: If 2.8X10⁻¹⁰ % of the atoms of a radioactive isotope disin-tegrate in 1.0 yr, what is the decay…

A: Radioactive decay at a distinctive rate, irrespective of the chemical substance within which they…

Q: Cobalt-59 is the only stable isotope of this transition metal.One ⁵⁹Co atom has a mass of 58.933198…

A: Introduction: Binding energy is the amount of energy required to separate particles or sub particles…

Q: .Determine the decay constant of 1 g of pure K40 that is experimentally determined  to emit about…

A: According to the question we have to calculate the decay constant for the potassium and the given…

Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 48.9 g of "P, how…

A:

Q: "C decays by positron emission. "c- "B+e Calculate the energy released or gained in this reaction…

A: The amount of energy released during nuclear reaction is calculated by the formula, E=∆mc2......(1)…

Q: What is the binding energy in kJ/mol nucleons for antimony-123? kJ/mol nucleons 51 H+ 72;n→ Sb The…

A:

Q: What is the half life of a radioactive sample, if3/4of its nuclei decay in 2 years?

A: The amount of nuclear decay in 2 years = ¾ th of initial massAssume that the initial mass = 1The…

Q: 3) Calculate the change in energy in J and Mev if 5 mol of Nitrogen -14 (14.0031 amu) nuclei were…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: A rock started with 4000 atoms of a parent radioactive isotope and now has 3750 daughter isotopes.…

A:

Q: The following nuclei do not lie in the band of stability. How would they be expected to decay? d. Li…

A: 5d.

Q: What is the binding energy in kJ/mol Cu for copper-65? kJ/mol 29;H+ 36,n Cu 65 The required masses…

A: Given-> Atomic mass of Cu = 64.92780 gm/mole Mass of proton = 1.00783 gm/mole Mass of neutron =…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.