A sealed box is completely evacuated (perfect vacuum), then 1,000,000 radioactive atoms are added. Their half-life is 2 days. After 4 days have passed, how many atoms are in the box? (A.) 1,000,000 B. 500,000 C. 250,000 D. 0

Q: 28. What describes the emissions of an isotope that gives off both beta and gamma radiation?  One…

A: Given :  What describes the emissions of an isotope that gives off both beta and gamma radiation?

Q: What type of radiation occurs when a negatively charged electron is emitted from a nucleus?

A: ANSWER

Q: .How does nuclear fusion generate energy? A.When a heavy nucleus splits, the total mass of the…

A: Nuclear chemistry

Q: If we start with 1000 radioactive parent atoms and a half-life of 50 years. How many parent atoms…

A: Given,  Initial concentration = 1000 atoms       t12 = 50 years   To find = concentration after 200…

Q: 26. In a radioactive decay, the Z of the parent nucleus decreases by one unit, therefore, the…

A: * Z represent  atomic number that is number of proton present  in an tom

Q: Samples of the following isotopes in pure form, each containing the same number of atoms, are taken.…

A:

Q: 4623V = ? + 4622Ti What particle would complete the nuclear equation above? a. alpha particle b.…

A: The given above reaction is a nuclear reaction where the vanadium undergoes nuclear decay to give…

Q: Which of the following affects the half life of a radioactive sample? A the age of sample B, the…

A: Half-life period: The time required for a given substance to disintegrate into one-half of its…

Q: The following are natural radioactive series except *       A. Actinium       B. Neptunium       C.…

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If…

Q: Which one/s take place in radioactive decay? I. An unstable nucleus spontaneously loses energy by…

A: given Which one/s take place in radioactive decay?I. An unstable nucleus spontaneously loses energy…

Q: Solve the following problems and show complete solution. A. Half life of Sr90 is 29 years. What…

A: A.     Half life of Sr-90 ( t1/2) = 29 y           Let ' t '    =  100 y       n × t1/2   =  t…

Q: What daughter nucleus is produced when a 5526Fe nucleus undergoes electron capture? a. 5527Co b.…

A: Electron Capture (K-capture): In this process, an electron is absorbed from the K-shell and forms a…

Q: Sodium-24, with a half-life of 15 hours, is commonly used to locate leaks in industrial pipe lines.…

A: Sodium-24 is one of the isotope of sodium and  sodium-22, sodium-24 are radioactive isoptopes,…

Q: Which one/s take place in radioactive decay? I. An unstable atomic nucleus spontaneously loses…

A: Nuclear chemistry is branch of chemistry in which we deal with nuclear fission and fusion reaction.…

Q: A 169 ng sample of radioactive material has a half life of 3.9 days. How many ng of radioactive…

A: Sample of redioactive material=169ng Half life=3.9days

Q: I0. Radium has a half-life of 1600 years. This means that after four half-lives, the total…

A: Since you have posted multiple questions as per guidelines we can answer one per session . If you…

Q: Element X has a half life of 9 days and decays into element Y. How much element Y is created after…

A:

Q: 4. Which type of radiation – alpha, beta, or gamma: a. Results in the greatest change in atomic…

A: To answer this question, we would first see definition and representation of alpha, beta and gamma…

Q: beta decay

A: C. The mass number is unchanged and the atomic number increases.

Q: For all of the remaining questions, show or describe your work. 3. The mass of a sample of a mystery…

A:

Q: Millicurie is defined as the radioactive material in which 37 million atoms disintegrate each:…

A:

Q: how many grams of tritium would you have in 37.5 years?

A:

Q: A certain isotope decays by beta-decay with half-life of 24.11 days. One of the products is…

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

Q: 7. Which of the following is the alpha particle? A. 0+1e B. 0-1e C. 10 n D. 42 He 8. A 200 g sample…

A: Given that, Among the given particles, Choose alpha particle = ?

Q: Which process creates heat, light and energy inside of stars? O A. Fission O B. Fusion O C. Half…

A: B) fussion is the correct answer

Q: 5. If a sample of strontium-89 weighs 1.065 g, what was its mass 153 days ago? The half-life of…

A:

Q: 6. Which among the following is best for shielding against gamma radiation? * A. aluminum B.…

A:

Q: The Curiosity rover sent to explore the surface of Mars has an electric generator powered by heat…

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

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.