Polonium-218 is an alpha emitter with a half-life of 3.0 minutes. If a sample contains 55 mg of Po-218 (atomic mass = 218.008965 amu), how many alpha emissions occur in 25.0 minutes? If the polonium is ingested by a person, to what dose of radiation (in Ci) is the person exposed?

Q: Manganese-49 (Mn-49, Z=25) decays by emitting a positron. What is the formula of the "daughter…

A: Mn-49 undergoes posisrron emission.

Q: nuclide 22086X decays to a new nuclide Y by emission of two alpha particles and two beta particles.…

A: In alpha decay atomic mass decreased by 4 while atomic number decreased by 2 ,it is also known as…

Q: . Suppose that an 85.0-g laboratory animal ingests 10.0 mg of a substance that contained 2.55% by…

A: Amount of Pu-239 ingested in animal = 2.55 % of 10 mg  Amount in mass =

Q: The Br-82 nucleus has a half-life of 1.0 x 103 min. If you wanted 1.0 g Br-82 and the delivery time…

A: The radioactive decay of Br-82 is an example of first order reaction. The rate constant of the…

Q: 1. Complete the equations for each of the following nuclear decay processes. 210 Po → 20 Pb + ? Th→…

A: For this type of nuclear reaction we complete the equation by determine the missing atomic number…

Q: A 76 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A: Given : Half life=12 hr Initial amount, [A]o=76 mg The final amount, [A]=? Time, t=3.5 days= 3.5 x…

Q: What radioactive isotope is produced when a neutron bombards 59Co? (write inthe answer with…

A: Given,

Q: 5. Complete the following nuclear equations by filling in the correct symbols. BAl + Na + He -> 131…

A: The complete nuclear reactions have to be given,

Q: Identical amounts of two different nuclides, an alpha emitter and a gamma emitter, with roughly…

A: Identical amounts of two different nuclides, an alpha emitter and a gamma emitter, with roughly…

Q: Which daughter nuclide forms when polonium-214 undergoes alpha decay? 218 a) ARn b) At 214 c) 14BI…

A: Polonium belongs to group-16 of the periodic table. Atomic No. = 84 It is a radioactive element…

Q: Write the isotope needed, by identifying AA, ZZ, and XX, to balance the following

A:

Q: If the half life of a radioactive isotope is 3 minutes, how much of an 8 Ci sample would remain…

A:

Q: Which of the following describes the reaction: 04U He +0 Th 92 Oalpha decay reaction O positron…

A: Given- Alpha decay is radioactive decay in which helium nuclei emitted and atomic mass decreases by…

Q: 4. Complete the following statement: Resulting from the alpha decay of (A)-223 is a daughter nuclide…

A: In this question, we will identify the A and number of neutrons of B  You see the details solution…

Q: The nuclide 192Pt78decays to 1880s76 by alpha emission. The mass of 192pt78 is 191.96146 u and the…

A:

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: A 26.00-g sample of water containing tritium, 31H, emits1.50 x 103 beta particles per second.…

A: In radioactive decay, radioactive atom's nuclei (unstable) eject energy as well as charged particles…

Q: How many neutrons are needed to initiate the fission reaction? 235U + ?on 139 56 Ba +36Kr + 3,n 94…

A:

Q: What is the missing symbol in this uranium fission reaction? U + dn - A. 1Ba + EKr + 3 in D. I - --…

A:

Q: The elementary particle (designated as Y) which is used to bombard the mother nuclide is 197 80 1Hg…

A: In the given reaction mass number remains unchanged while  atomic number decreased by one. When…

Q: The atomic mass of 205TI is 204.9744 amu. Calculate the nuclear binding of this nucleus and the…

A:

Q: Predict a likely mode of decay for unstable nuclide. Te-139

A: Beta decay: When nuclides have high neutrons to protons ratio (N/Z) then they lie above the band of…

Q: If the half-life of a radioactive isotope is 32 days, how many half-lives must pass before a 3.0…

A: Radioactive decay follows the first-order kinetics. The half-life of the first-order reaction does…

Q: 20. A 232Th nucleus decays by first emitting an 90 alpha particle. It later decays by emitting two…

A: Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha…

Q: The nuclide 35S decays by beta emission with a half-life of 87.1 days.(a) How many grams of 35S are…

A: The relation between the half life nad the number of nuclei,N=A(t120.6931)........1stWhere,N  =…

Q: A chemist wishing to do an experiment requiring "c (half-life = 4.5 days) needs 7.0 ug of the…

A: GIVEN:-

Q: A 60 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A: Given: Half-life = 12 hours Radioactivity follows first-order kinetics. First calculate the rate…

Q: Bismuth-210 is a beta emitter with a half-life of 5.0 days. If a sample contains 1.2 g of Bi-210…

A: Given data:

Q: Which of the following radioactive nuclei is most likely to decay via emission of a b- particle? (a)…

A:

Q: ²¹⁰Pb decays by emitting a β⁻ particle. What nuclide is produced? A) ²¹⁰Bi B) ²¹⁰Pb C) ²¹⁰Hg…

A: Beta decay (β-decay) is a type of radioactive decay in which a beta particle (fast energetic…

Q: A nuclide 22086X decays to a new nuclide Y by emission of two alpha particles and two beta…

A:

Q: How is the nuclide 23892U altered by (i.) the emission of one α particle, (ii.) the emission of one…

A:

Q: After 31 years, what mass (in g) remains of a 45.0 g sample of a radioactive isotope with a…

A: Given, Half life (t1/2 )= 7.3 years time (t) = 31 years Number of radioactive atoms present…

Q: A chemist wishing to do an experiment requiring 4" Cat (half-life = 4.5 days) needs 9.0 µg of the…

A: Given :                          Half life = 4.5 dayes  Current quantity ( N) = 9.0μg…

Q: 2) Which isotope is produced when 2Po decays by emitting an alpha particle followed by 2 beta…

A: Both α decay and β decay are the types of radioactive decay in which a parent nucleus disintegrates…

Q: 10.6 nai 10.7. The radioactive nuclide 6ºCo has a half-life of 5.27 years. Calculate the mass of…

A:

Q: What is the daughter nucleus (nuclide) produced when 227 Th undergoes alpha decay? Replace the…

A: When any element emits alpha radition a nuclear reaction occur as a result atomic number and mass…

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: Transuranium elements are artificial and may be prepared by a fusion process in which heavy nu are…

A:

Q: A chemist wishing to do an experiment requiring 4"Ca2+ (half-life = 4.5 days) needs 8.0 µg of the…

A:

Q: lodine-131, t2 = 8.0 days, is used in diagnosis and treatment of thyroid gland diseases. If a…

A:

Q: Radium-223 decays by alpha emission to Radon-219  (21986Rn), releasing 5.864MeV of energy per atom.…

A:

Q: 3.7. The radioactive nuclide Co has a half-life of 5.27 years. Calculate the mass of Co that remains…

A: Rate of a reaction determines the speed with which a reaction proceeds. First order reaction is a…

Q: Bi – 210 is a beta emitter with a half-life of 5.0 days. Part A If a sample contains 2.1 g of Bi -…

A: Given Half Life = t1/2 = 5.0 dayskt1/2  = 0.693k * 5 days = 0.693k = 0.1386 day-1

Q: If the half-life of a radioactive isotope is 3.5 minutes, how many grams of a 200-gram sample would…

A: The interval of time required for a radioactive isotope to decay to one-half of its atomic nuclei is…

Q: If the nuclide has a half-life of 12 hours, how much of the nuclide remains in the patient after 6.0…

A: Given :  Half life of nuclide  = 12 hours  Total time = 6 days   Or total time = 6 × 24 hours = 144…

Q: Bi−210 is a beta emitter with a half-life of 5.0 days If a sample contains 1.0 g of Bi−210, how many…

A: Half life of a reaction is the time required for a reacton to complete it's half. That is, in half…

Q: At 8:00 a.m., a patient receives a 58-mg dose of I-131 to obtain an image of her thyroid. If the…

A: At 8:00 a.m., a patient receives a 58-mg dose of I-131 to obtain an image of her thyroid. If the…

Q: A 58 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A:

Q: 3. The nuclide 192Pt78decays to 1880s76 by alpha emission. The mass of 192Pt78 is 191.96146 u and…

A:

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.