Which of the following would be valid uses of a radioactive tracer? embedding a radioactive plug in a valuable necklace so that its location can be determined using a Geiger counter   adding a stream of radioisotopes to wastewater to examine where pollution goes when it flows into the ocean   placing radioactive sources around a room to trace the location of people as they move through the room   filling a pipeline with a radioactive gas to see if it contains any leaks

Q: A star has a luminosity of 1026 W and the main nuclear fusion reaction of this star is the p-p…

A: p-p chain reactions are those reactions in which four hydrogen nucleus combine together to form one…

Q: Predict the type of radiation emitted when boron-8 decays spontaneously. Group of answer choices…

A: Introduction: Positron emission: A positron is like an electron but it has a positive charge,dur dur…

Q: The carbon-14 decay rate of a sample obtained from a young tree is 17.2 disintegration per minutes…

A: Given : T1/2 = 5715 years.

Q: The half-life of Sn-110 is 4 hours. If you had 40 grams of this nuclide, how much would you have…

A: Given: Initial mass of isotope = 40 g. Half-life of isotope = 4 hours. And time passed = 8 hours.

Q: Iodine-131 has a half-life of 8.1 days and is used as a tracer for the thyroid gland. If a patient…

A:

Q: Select any statement about radiation that is true. [Check all that are true.] Group of answer…

A: Since we know that radiation has many advantages as well as disadvantages in our daily life . Now a…

Q: Identify the radiotracer used to study problems with spleen. O iron-59 O phosphorus-32 O…

A: Correct answer is iron-59. Radiotracer Fe-59 is used to study problems with spleen.

Q: Real-World Applications: U-238 Dating But what if all the C-14 in a sample has decayed or the sample…

A: Uranium-238 or U-238 (238U) is the most common isotope of uranium found in nature and used for…

Q: 1. - used as a tracer to diagnose pernicious anemia. - used in archeology, biological research, and…

A:

Q: Which of the following is not a symptom for radiation sickness vomitting tiredness C headache hair…

A: Tiredness is not a symptom of radiation sickness.

Q: certain radioactive substance decays at a rate of 15% each year. By what percentage does it decay…

A: Given- Rate of decay =15%

Q: If a rock contains 75% lead 206 (Pb206) and 25% uranium 238 (U238), how old is the rock? Explain…

A: The question is from radioactive Series. Uranium -238is a radioactive element that converts to…

Q: A scientist is investigating how quickly water goes up a tree in a forest. Which radioisotope below…

A: Answer - Radioisotopes - Radioisotopes are radioactive isotopes of an element. They can also be…

Q: Radiation is utilized to reduce or eliminate microorganisms and insects from food. What are the…

A: Food irradiation is a technology that uses ionizing radiation on food in order to improve the safety…

Q: When a Pd-106 nuclide is struck with an alpha particle, a proton is produced along with a new…

A: The atomic number and mass number of an alpha particle (He nucleus) are 2 and 4 respectively. The…

Q: When 7Be undergoes electron capture, what is the daughter nuclide that forms? 4 O 11C 6 O 8B 5 O 3He…

A:

Q: At a distance of 38 ftft , an ionizing radiation source delivers 6.5 remrem of radiation. How close…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Identify the process for converting 24/11 Na into 24/12 Na.

A: ANSWER

Q: What medical imaging techniques do not use radioactivity?

A: Given information,   Medical imaging techniques that do not use radioactivity

Q: By what processes do these transformations most likely occur? (a) 107 Pd to 107 Ag alpha decay O…

A:

Q: 35. When Nd-144 undergoes alpha emission, it changes into A. Nd-140 B. Ba-140 C. Sm-140 D. Ce-140

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Show complete and comprehensive solutions by providing short explanation to your answers if needed.…

A:

Q: Iodine-131 captures an electron and emits 3 positrons in one of its decay processes.  What is the…

A:

Q: Describe the relative penetrating powers of alpha, beta, and gamma radiation.

A: There are sub-atomic particles like alpha particle, beta particle and gamma particle. Alpha particle…

Q: Smoke detectors use the radioisotope Am-241, which works by no longer sending radioactive signals…

A: Smoke detectors use Americium-241 as source of alpha particles.

Q: Potassium ion is present in foods and is an essential nutrient in the human body. One of the…

A: 40-K , undergoes decay by three modes : 1. Positron emission ( it is emission of beta+ particle),…

Q: When the radiation is from an external source, which type of radiation is most harmful to the human…

A: Radiation source is external and most harmful to the human body.

Q: Whether or not the process is observed in nature, which of the following could account for the…

A: Some radioactive elements emits radiation like alpha, beta etc to become a stabe nucleide.

Q: For each quantity in the table below, write the symbol of the SI unit in which it would usually be…

A: Radioactivity is the process in which radiation emitted to unstable nucleus is called radioactivity.…

Q: Part 2: Fill in the blank to determine the missing reactant or product. Then state if it is alpha or…

A:

Q: Write the equation for the alpha decay of Uranium-238 (U-238). b) What is the element that is formed…

A:

Q: Why might bone be a common place for radioactive Sr-90 to accumulate in mammals?

A: Naturally occurring strontium is not radioactive. The most common man-made radioactive form of…

Q: Write a chemical equation for each of the following radioactive decay processes a) nitrogen-13…

A: a) Please find below the reaction

Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical…

A:

Q: The explanation for how a beta-particle is produced in the nucleus of a radionuclide and then…

A: beta particles are 0-1e Hence the beta-particle is produce in the reaction means production of  0-1e…

Q: State why an alpha emitter is not suitable to be a tracer

A: A tracer is a chemical compound in which one or more atoms are replaced by a radioactive nuclide and…

Q: Which of the following statements related to nuclear chemistry is incorrect? According to the…

A: Characteristics of nuclear reacions

Q: Which of the following is not a factor in determining the biological effects of radiation exposure?…

A: There are different characteristics for each type ionization radiation. The alpha particles are…

Q: Write a nuclear equation for the type of decay each of these unstable isotopes is most likely to…

A: A question based on nuclear reactions that is to be accomplished.

Q: How does radioisotopes in medicine relate to the grade 12 unit of Structure and Properties of…

A:

Q: Write the daughter nucleus product in the following nuclear processes: Beta emission of…

A:

Q: Fluorine-18, an artificially produced isotope used in the medical diagnostic technique, PET…

A: 9F18 ---> 8O18   +     +1ß0  Or  9F18 ---> 8O18  +    +1e0 Therefore, The product of the decay…

Q: A new painting supposedly painted by Michelangelo (1475-1564) is authenticated by C-14 dating. The…

A: The radioactive decay of an element follows the first-order kinetics. Therefore, the integrated rate…

Q: When Nd-144 undergoes alpha emission, it changes into   Nd-140   Ba-140   Sm-140   Ce-140

A: The parent nuclei is: Nd-144 From periodic table:  The atomic number of Nd is: 60 So For Nd: Atomic…

Q: Which of the following are required characteristics of an isotope to be used as a fuel in a nuclear…

A: The fuel in nuclear power reactors undergoes fission reaction. It undergoes fission and form…

Q: A patient is not familiar with radioactive isotopes and has fears about the diagnostic procedure.…

A:

Q: An 85 kg radiation worker accidently ingest 1.0 mg of Po211. Calculate Number of Po211 atoms…

A: This problem can be solved by knowing that 1 mole of substance contains 6.022×1023 particles.

Q: Which among the choices between differences of nuclear and chemical reaction is not true?   Group of…

A: The solutions are given below -

Q: The way radioisotopes are useful in treating cancer is due to   being easy to detect   killing…

A: The radioisotopes are used to treat cancer by killing cancer cells or inhibits the growth of Cancer…