Manganese-49 (Mn-49, Z=25) decays by emitting a positron. What is the formula of the "daughter nuclide" produced in the nuclear reaction? A. Cr-49 B. Cr-48 O C. V-49 D. Cr-50 E. Fe-49

Q: 3. A 50 gram sample of a radlolsotope undergoes 2 half-lives. How many grams would remain at the…

A: Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a…

Q: Zinc-71 decays to a gallium-71 nuclide with a half-life of 2.45 minutes. What percent of a zinc-71…

A: We have to find out the percentage of zinc for the given question

Q: Three atoms of element 111 (roentgenium) were produced in 1994 by bombarding 209Bi with 64Ni.(a)…

A: The element Roentgenium (Rg) has atomic no. of 111. It is a radioactive element. It is produced by…

Q: 1. Complete each nuclear reaction: d. U + in -_on + 1Ba + Kr f. Pu Не + g. Li + in -je + He + h. K +…

A:

Q: If a positron is to be emitted spontaneously, how much more mass (as a minimum) must an atom of the…

A: Parent nuclide  = Daughter nuclide + positron

Q: A rock contains 0.257 mg of Pb-206 for every milligram of U-238.The half-life for the decay of U-238…

A:

Q: What is the other product (besides an alpha particle) when 14 Gd undergoes alpha decay?

A:

Q: A radioactive nuclide 60/27 Co has a half-life of 5.27 years. Calculate the mass of 60/27Co that…

A: Given the half-life period of radioactive nuclide 60/27 Co has a half-life of 5.27 years.  Mass of…

Q: 232 Th - 228 Th + xa + yB 90 06 A Thorium (Th) decays by emitting x alpha particles and y beta…

A: The spontaneous emission of radiation is called radioactivity. The nucleus which emits radiation is…

Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Half-life of Cs is 30.2 years. Intial amount sample = 100 g  Final amount sample = 1.00 g

Q: Consider a certain type of nucleus that has a half-life of 32 min. Calculate the time required for…

A:

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.5 g remain. What is the original…

A:

Q: A patient is given 0.050 ug of technetium-99m, a radioactive isotope with a half-life of about 6.0…

A: Given: Mass of technetium-99m = 0.050μg half life= 6.0 h Mass of technetium to decay= 1.0×10-3μg

Q: Copper-64 decays via positron emission with a half-life of 12.8 hours. Please write out the balanced…

A: Positron emission The positron emission process is a conversion of 1 proton into 1 neutron. The…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.4 g remain. What is the original…

A: The Answer to the following question is-

Q: When ²³⁵U absorbs a neutron, it forms an unstable nuclide that ultimately fissions into smaller…

A:

Q: ased on nuclear stability, what is the symbol for the most likely product nuclide when iron-59…

A: Interpretation: We have to product the decay reaction for  iron-59.

Q: How long will it take for a 40.0-gram sample of Iodine-131 to decay to 1/16th of its original mass?…

A:

Q: 2. A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013…

A: Radioactive disintegration follows first order kinetics.

Q: A sample of lead isotope Pb decays by 209 82 emitting an alpha particle to form the nuclide W. If…

A:

Q: An unknown radioactive element decays into non-radioactive substances.  In 660 days the…

A: Rate constant (k)= 2.303/t log 100/49 So k = (2.303/660) ×0.3098 =0.0011 days ^-1

Q: Bismuth-209 has a half-life of 2.01 x 1019 years.  How long will it take for 6.92 kg of bismuth-209…

A: We have to predict the time taken.

Q: The scene below depicts a neutron bombarding 235U.(a) Is this an example of fission or of fusion?…

A: The nuclear reaction involves the fission or fusion of radioactive elements which is proposed with…

Q: What is the daughter nuclide when Co-55 experiences positron emission? (Write your answer as a…

A:

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: An unknown radioactive substance is currently decaying. Initially, the sample contained 16.1g of the…

A:

Q: 3. The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 32 minutes.…

A: Beta decay is a type of radioactive decay in which mass number of nuclide remain same but the atomic…

Q: If 16.0 g of a nuclide with a half-life of 2.0 hr is allowed to decay for 10 hours, how much of the…

A: Chemical kinetics is the branch of chemistry that mainly deals with the rate of reaction and change…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 5.2 g remain. What is the original…

A:

Q: The isotope N-14 has an atomic mass of 14.003074 amu. What is the mass defect for the formation of…

A: Fourth option. 0.1005028 amu

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.3 g remain. What is the original…

A: Answer

Q: Suppose a potassium-38 nuclide decays into an argon-38 nuclide by emitting a positron. Complete the…

A: The correct answer about radioactivity decay is given below

Q: Radiologists, in some cases, use bismuth-213 to treat cancer wherein its decay produces a high…

A: Bismuth has symbol 'Bi'. Alpha particle has the symbol of H24e. Bi has atomic number 83.

Q: Suppose that the nuclear mass of N-13 is reported as 13.000739 amu. Calculate: (1) Mass of the…

A:

Q: What is the half-live of a radioactive isotope if it takes 6.2 days for a 72g sample to decay to…

A: Given, 72 g to decay to 18 g. t = 6.2 days To calculate the half-life.

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.8 g remain. What is the original…

A:

Q: Rubidium-87 decays by β production to strontium-87 with a half-life of 4.7 × 1010 years. What is the…

A: Since the Sr is forming by the decay of Rb  Ans since 1 mole of Rb will decay to form 1 mole of Sr…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.2 g remain. What is the original…

A:

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

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

Q: Part 1: Writing Radioactive Decay Reactions (5.2) lodine-131 (131I) isotope undergoes beta decay. 1.…

A: Radioactive isotopes undergoes disintegration to form a stable nucleus and emit alpha and beta…

Q: Phosphorus-30, which has a half-life of 150 seconds, decays by positron emission. How long will it…

A: Nuclear reactions or nuclear decay follows first order kinetics. Given: Half life t1/2 = 150.…

Q: a) Mrs. Price's son, Liam is currently working as a boilermaker at the Darlington Nuclear Power…

A:

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.0 g remain. What is the original…

A:

Q: Polonium 209 (Po-209) has a half life of 103 years. How long would it take a 100-g sample to decay…

A:

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 6.6 g remain. What is the original…

A: Radio active decay obeys first order kinetics. The expression for rate constant:   Half life of…

Q: With a half-life of 6.56 minutes, aluminum-29 decays to silicon-29 nuclide. After 18 minutes, what…

A:

Q: Potassium-40 decays to produce Ar-40. What is the method of decay? Write the nuclaarequatinn for…

A:

Q: 1. Neutron captured by beta decay happened to 23NP3 is irradiated with neutrons. a. Write the…

A: We are given a nuclear reaction, In which Neptunium-238 is bombarded with an neutron and it convert…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 2.5 g remain. What is the original…

A: Given :-  Amount of sample left after 120 years = 2.5 g  Half-life kf Cs-131 nuclide = 30 years  To…

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.