Predict a likely mode of decay for unstable nuclide.  Mo-109

Q: The half-life of 26?? 59 is 44.6 days. How long will it take for 95.0% of a sample of this nuclide…

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Q: Which nuclide(s) would you predict to be stable? Why?(a) ¹²⁷I(b) tin-106(c) ⁶⁸As

A: Sn-106 nuclide has 56 neutrons and 50 protons, giving a neutron-to-proton ratio of 1.12, this ratio…

Q: Heavy nuclides with too few neutrons to be in the band of stability are most likely to decay by what…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: What units are used to measure radioactivity?

A: Radioactive decay or radioactivity refers to the breakdown of an unstable nucleus to a stable…

Q: Element 87 undergoes one negative beta, one positron and one gamma decay to become element?

A: We have to explain for the following given element 87 undergoes one negative beta, one positron and…

Q: Write balanced nuclear equations for the following: (a) B¯ decay of silicon-32 (b) Alpha decay of…

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Q: Which type of nuclear decay is the most difficult to block and needs a very thick sheet or a block…

A: Radioactive decay is defined as a process by which an unstable atomic nucleus loses energy by means…

Q: Write a partial decay series for Th-232 undergoing the sequential decays: a, B, B, a.

A: α decay means atomic mass reduce by 4 and atomic number reduce by 2. β decay means no change in…

Q: Determine the age of a rock containing 0.065 g of uranium-238 (t1/2=4.5x10^9yr) and 0.023 g of…

A: 238U decays and form 206Pb. First calculate the amount of 238U that got decayed to form 206Pb.…

Q: Explain what is meant by (a.) radioactivity (b.) half-Ilfe Why is it necessary to specify the…

A: a) Radioactivity is a process or phenomenon of disintegration of unstable nucleus into stable…

Q: Heavy nuclides with too few neutrons to be in the band (zone) of stability are most likely to decay…

A: The correct answer about the stability of Heavy nuclides is given below

Q: How do the modes of decay differ for a neutron-rich nuclide and a proton-rich nuclide?

A: The nuclides are species of atom having particular number of protons and neutrons, which contain a…

Q: What radionuclide technique can be used to estimate the age of fossils up to 50,000 years old?

A: Radionuclide: It is also known as Radioactive nuclide, radioactive isotopes. These are the atoms…

Q: 15. Th-232 undergoes a disintegration series by successive alpha, beta, beta, alpha, alpha, alpha,…

A: Solution : Thorium is such an element that occurs naturally on the earth's crust. Thorium has…

Q: what type of radioactivity occurs on the decay of polonium-216 to bismuth-216?

A: There are different type of dicays like alpha decay , beta decay , Gamma decay, positron emission…

Q: 015) Write balanced nuclear equations for the electron capture decay of the following radionuclides.…

A: Electron capture decay is a type of beta decay or electron capture process (0E or e-) where…

Q: The radioactive nuclide has a shelf-life of 17.5 hours. What mass remains from 0.0100g sample after…

A: Shelf-life of 17.5 hours, Calculate the mass remains from 0.0100 g after 24 hours.

Q: a. Write the equation for the decay of ²5}Am by a- particle production. b. The complete decay of…

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Q: (237)Np is the parent of an extinct natural decay chain that ended in (209)Bi. What is the longest…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: What is the binding energy per nucleon? Why is the binding energy per nucleon, rather than per…

A: Binding energy: Energy required breaking down the particles from the system. It is appropriate for…

Q: What isotope is used for radioactivity dating of previously lived entity?

A: C-14 (Carbon-14) is a radioactive isotope. It has a half-life of 5,730.

Q: Radium-221 has a half life of 30 seconds. How long will it take for 82% of a sample to decay?

A: Half life =30 seconds Decay percentage = 80%

Q: Write balanced nuclear equations for 1) the loss of a positron by Y-85

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Q: How much time will be required for a sample of H-3 to lose 75% of its radioactivity? The half-life…

A: The rate of radioactive decay is often characterized by the half-life of a radioisotope. Half-life…

Q: Write a balanced nuclear equation for the B decay of chromium-55.

A: The objective of the question is to provide a balanced nuclear equation for the beta decay happening…

Q: Why is it important that radioisotopes used as diagnostic tools in nuclear medicine produce gamma…

A: The half life of gamma radiations is much lesser than that of gamma radiations. It is due to the…

Q: A radioactive nuclide of mass number 94 has been prepared by neutron bombardment. If 4.7 µg of this…

A: Radio nuclide is nuclide which is unstable and due to its extra energy it disintegrates into new…

Q: 6. Determine the identity of the daughter nuclide from the electron capture by Be. O He Не O 11 Li…

A: Electron capture is a process in which the proton-rich nucleus of an electrically neutral atom…

Q: The radioactive nuclide 60Co as a half-life of 5.27 years. Calculate the mass (in g) of "Co that…

A: Formula: N=Noe-λt

Q: 14. Explain how unstable heavy nuclides (atomic number > 83) may decompose to form nuclides of…

A: Nuclear chemistry is a branch of chemistry which deals with the reaction that is taking part in the…

Q: Nuclides with too many neutrons to be in the band of stability are most likely to decay by what…

A: Nuclides with too many neutrons lie above in the band of stability. This nuclie which has more…

Q: b. ? + Li → 25HE Balanced equation: OA. a-decay ов в-decay OC. Fission D. Fusion OE. Other

A: In nuclear reaction, Balanced equation means number of proton and mass number in reactant side is…

Q: Assuming that many radioactive nuclides can be consid-ered safe after 20 half-lives, how long will…

A: It is given that many nuclides can be considered safe after 20 half-lives. Given data: Half-life…

Q: The nuclide 'Es is made by bombardment of *U in a reaction that emits five neutrons. Identify the…

A: A radioactive nuclei can be converted to other nuclie by the bombardent of free nucleons or photon…

Q: A radioactive decay series that begins with 23290Th endswith formation of the stable nuclide…

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Q: The nuclide 180 ( atomic mass, 17.99916 u) is produced by the B* decay of 18F (atomic mass, 18.00094…

A: Beta+ decay is positron decay  189F -------> 188O + 0+1e + Energy Atomic mass of oxygen =…

Q: The isotopic mass of 21086Rn is 209.989669 amu. When thisnuclide decays by electron capture, it…

A: The nuclear reaction of electron capture can be written as Rn86210 + e-10 →  At85210 Energy released…

Q: Fluorine-21 has a half life of approximately 5 seconds. What percent of the original nuclei would…

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Q: Fill in missing sub- and superscripts for all particles to complete the following equation for…

A: Given a positron decay equation and we are asked to complete the equation by filling the missing…

Q: Predict a likely mode of decay for unstable nuclide. Ba-123

A: The mode of decay that is likely to be undergone by the nuclide depends on the neutrons to proton…

Q: True or false? During one half-life, the mass of a radioisotope is reduced by half. Explain.

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Q: The function of the moderator in a nuclear is to

A: In nuclear neutrons are used to attack and there is a specific value of velocity of neutrons. If…

Q: Nuclides with too many neutrons to be in the band of stability are most likely to decay by what…

A: In a stable nuclide, the ratio of the number of neutrons to protons is in a definite region. If the…

Q: B,B, a a emissions to produce uranium-236? What nucleus decays by successive

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Q: Write balanced nuclear equations for the following:(a) Formation of ²⁴¹₉₅Am through β⁻ decay(b)…

A: Isotopes are those elements which have same atomic number but different mass numbers. There are many…

Q: A radionuclide undergoes beta decay with half-life of 30.0 years. How many years will it take for 25…

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Q: Determine the rate of decay (in decay events per sec) from 1.00 mol of radioactive nuclides with…

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Q: The following isotopes are all stable : 20Ne, Ne, 22Ne 10+ 10- While the following is not, so what…

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