Potassium-40 is a beta emitter. That means it   becomes negatively charged   becomes positively charged   becomes a radioisotope of potassium   changes into a different element

Q: Describe the meaning of the term natural radioactivity.

A: Natural radioactivity is a purely nuclear phenomenon. The nucleus of a radioactive substance is…

Q: 60Co -->   60Ni + ____     Alpha emission     Beta emission     Positron emission…

A: Atomic number of Co is 27 and Ni is 28 Hence the reaction taking place is (Assuming the missing…

Q: If sample made up of Glunitie 142 with a half life of 7 days contained 93.75% daughter atoms, how…

A: The question is based on the concept of chemical kinetics. we have to calculate the age of the given…

Q: What is one example of a radioisotope used in medicine? What is it used for?

A: Introduction: Radioisotopes are the element which which are formed through the process of radiation…

Q: Match the description of nuclear decay to the type of nuclear decay. Column A He 2. 3. in 0 -1 e Y…

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Q: Match the following:  neutron, fusion, positron, elctron capture, proton, alfa partcile 1) This…

A: A chemical reaction is the symbolic representation of the conversion of substances to new…

Q: A radioactive isotope has a half-life of 12.0 seconds. How much of a 100 gram sample is left after…

A: Given  Half life of radioactive isotope ( t1/2 )  = 12 second  Initial Mass of sample   ( A )0 = 100…

Q: Select the isotope that has the greatest stability per nucleon. A. 56 Fe 26 B. 131 Xe 54 C. 23 Na…

A: Here we have to select the isotope which has greatest stability per nucleon-

Q: A radioactive particle deflected away from a negatively charged plate must be a(n)   beta particle…

A: Charges of opposite sign attract each other, where as charges of same sign repel each other.  Given…

Q: Cesium-137 is a strong beta emitter. That means it   becomes positively charged   becomes…

A: Cesium-137 is a strong beta emitter. That means it

Q: What is the most likely mode of decay for each?(a) 111/47Ag     (b) 41/17Cl     (c) 110/44Ru

A: Radioactivity is the process by which an unstable atomic nucleus loses energy by radiation. The…

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: 32.  A specimen of charcoal found contains 57% as much 14C as a sample of present day charcoal. What…

A: Given : Half life = 5700 years

Q: pile of radioactive material with a half-life of 10 years needs to sit until 0.0039 of the original…

A:

Q: 01: Two radioactive samples contain equal number of particles initially. Sample A disintegrate at…

A: A with 10 particles per second B with 1000 particles per second As decay constant k =0.693/half life…

Q: I was able to figure out the modes of decay. Here is what I got: Mode of decay: (a) Beta decay; (b)…

A: Decay equations are asked for the given decay modes.

Q: Complete the following beta decays. Make sure to delete the "0" that appears in the pre‑subscript…

A: Beta decay : It is the radioactive decay process where the atomic nucleus emits the beta particle…

Q: 3Ga --->    73Ge + ____       Alpha emission     Beta emission     Positron emission…

A: Various sub-atomic particles possessing specified mass and atomic numbers are evolved in nuclear…

Q: A wooden boat discovered just south of the Great Pyramid in Egypt had a carbon-14 content of…

A:

Q: 38. Na-24 undergoes beta emission to change to   Na-23   Mg-24   Ne-24   Mg-23

A:

Q: Which of the following nuclear emissions moves away from negatively charged plates and moves towards…

A: nuclear emission : It is a spontaneous process where a radioactive nucleus continuously emits…

Q: 80 70 60 50 40 30 20 10 1. 4. 10 Time (Days) a. How many atoms are in the original sample size of…

A:

Q: A radioisotope captures an electron. That means   it emits a gamma particle   it becomes a…

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Q: Half life of radionuclide is 15.0 minutes. How many grams of 10.0 g will remain after 2.00 half…

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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: 10. A radioisotope undergoes two succesSive decays. The first decay makes product / Product A reacts…

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Q: The table below lists information about the radioactive decay of three nuclides. Fill in the missing…

A: Nuclide is the one with the definite number of protons and neutrons. It undergoes various types of…

Q: A worker in a laboratory unknowingly became exposed to a sample of radio-labeled sodium iodide made…

A:

Q: Consider a certain type of nucleus that has a half-life of 32 min. Calculate the percent of original…

A: Given: The half life, (t1/2)=32 min. The time of disintegration , (t)=1.9 hrs=(1.9*60)=114 min.…

Q: Explain, in terms as shown, how unstable heavy nuclides (atomic number > 83) may decompose to…

A: (a)

Q: 1. Primordial (Terrestrial) Radionuclides i. Natural Radioactive Series: Many of the naturally…

A: Radioactive Series : A series of elements which are formed by disintegration of parent atomic nuclei…

Q: A radioactive nuclide that has a life of 5 hours has an initial amount of 50 grams. After 15 hours,…

A: The formula for the ratio of the initial amount and amount after time t is, NN0 =12tTwhere,N0 =…

Q: The nuclear symbol for an alpha particle is The name for the greek letter y is | Of the radiations…

A: The nuclear symbol for an alpha particle is 2α4.

Q: 48  of 48 How long for Ru-106 (half-life: 1 year) to decay down to 0.50% of its original amount? A.…

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

Q: List five uses of man made radioisotopes.

A: Radioisotopes find multiple uses in different fields which are beneficial to mankind. They have…

Q: The table below lists information about the radioactive decay of three nuclides. Fill in the missing…

A: By using the given decay identify the daughter nuclei---

Q: Manganese-56 is beta emitter with a half life of 2.6 hours. How much was in the original sample if…

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Q: If the amount of radioactive carbon in a fossil sample is too small to be measurable, you   can't…

A: A multiple choice question based on carbon dating, which is to be accomplished.

Q: Iodine-131 (half-life = 8.02 days) tracer with 214 counts per minute was added to water as iodide…

A: The rate of the reaction is referred to the change in the molar concentration in the distinct…

Q: If thorium-232 emits an alpha particle during radioactive decay.   Enter your answers as whole…

A:

Q: 23 Mg decays to 12 23 Na. Which of the following 11 The isotope processes can produce this change?…

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Q: Radioisotopes are radioactive due to having   radioactivity stored in it   unstable nuclei   excess…

A: The nuclei of radioisotopes are unstable, so they constantly decay and emit radiation.

Q: Assuming two samples of radioisotopes both contain the same number of atoms, the activity of the…

A: An element remains 50% of the original amount in its half-life period.

Q: 5. Classify each nuclide as stable or unstable a. 232Th b. 20Ca 265 c. 104Rf d. Ag c. 1301 40 d.…

A: The stability of nuclide is determined by neutron to proton ratio. For atoms upto atomic number 20…

Q: How old is this Martian Rock that is found to be containing 12.5% of a radioactive parent nucleus?…

A: On going from Martian Rock sample containing 100% of the Radioactive nucleus, to 25% of the…

Q: Zirconium-100 emits beta particle as it disintegrates. What is the isotope name after it decays…

A: Beta decay can be defined as the radioactive decay in which a beta particle is emitted from an…

Q: Unstable parent nucleus Daughter Atomic number: 1 fewer nucleus Electron (-) Proton Neutron- Atomic…

A: Nuclear reaction: A nuclear reaction must cause a transformation of at least one nuclide to another.…