Choose the BEST answer to the following. In both fission and fusion, energy is released while mass (a) decreases. (b) remains unchanged; is conserved. (c) increases. (d) may decrease or increase.

Q: answer

A: Nuclear fission is a process in which a large nucleus splits into smaller nuclei and it is used to…

Q: Explain the difference between nuclear fission and nuclear fusion?

A:

Q: Choose the BEST answer to the following. Which process would release energy from gold, fission or…

A: Nuclear fission is the splitting of a heavy nuclei or parent nuclei of an atom into smaller nucleus…

Q: Define Radioactive Decay And Give Some Examples Of It.

A: Radioactive decay: It is a process in which an unstable atom breaks down by losing energy and…

Q: How do the four types of nuclear radiation differ?

A: There are four major types of radiation 1) Alpha rays 2) Beta rays 3) Neutrons 4) Electromagnetic…

Q: Cs-137 has a half-life of 30 years. Approximately how much time is required for the radiation of…

A: Given Data : The half-life of Cs-137 is given as t12=30 years

Q: H + H → He +_+ energy Here is one of the most promising reactions in fusion. Complete the missing…

A: Option a is the right answer  0n1

Q: When a pair of hydrogen nuclei are fused to create helium, how does the mass of the resulting helium…

A: Given :  Pair of hydrogen nuclei

Q: What is meant by the idea of a critical mass?

A: The least amount of a given fissile material needed to achieve a self-sustaining fission chain…

Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

A: a) Calculate the decay constant. N(t)=Noe-λt λ=1tlnNoN Substitute the values. λ=1365 daysln200 g7.1…

Q: How is radioactive emission different from radioactivity and radioactive decay?

A: Radiation is a broad term that encompasses all types of energy output and transmission, including…

Q: What happens when an unstable nucleus undergoes radioactive decay?

A: Radioactive elements are elements with unstable nuclei. To become more stable, the nuclei undergo…

Q: Find the energy released in the fusion reaction

A: The masses for given elements are,

Q: When did the world know fusion existed? Select one: A. 1920 B.2000 C.1980 D.1960

A: The most prevalent reaction in our observable universe is fusion, which also fuels our Sun and other…

Q: Why is nuclear energy controversial?

A: Nuclear energy in recent times becoming more controversial. The energy outcome by the splitting of…

Q: In what way are fission and fusion reactions similar? What are the main differences in these…

A: Nuclear fission and nuclear fusion both are the nuclear reactions.

Q: The​ half-life of a radioactive substance is 20 years. If you start with some amount of this​…

A:

Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

A:

Q: Suppose you start with 1 kilogram of a radioactivesubstance that has a half-life of 7 years. How…

A: Radioactive decay is represented by,

Q: Why is carbon better than lead as a moderator in nuclear reactors?

A: Carbon is an effective stimulator of fission reaction than lead. In case of carbon, it interact with…

Q: Name two isotopes that undergo nuclear fission.

A: The two isotopes that undergo nuclear fission are Plutonium - 239 and Uranium - 235.

Q: Suppose that you are given a 200 gram sample of a radioactive substance with a half-life of 45 days.…

A:

Q: Describe briefly the process of nuclear fission, how it is initiated, how a chain reaction may be…

A: Nuclear energy is produced by the nuclear fusion reaction in the core. Uranium-235 and plutonium-239…

Q: Which has the greater number of protons, U-235 or U-238? Which has the greater number of neutrons?

A: Both of them will have same number of protons.

Q: Why is uranium-235 used in nuclear fission? why is uranium-235 one of the only elements ideal for…

A:

Q: If a sample of a radioactive isotope has a half-life of 3 years, how much of the original sample…

A: The half-life of the sample = 3 years (a) That means, after every 3year the sample becomes half of…

Q: What is the difference between nuclear fission and nuclear fusion?  Which one is used in our nuclear…

A: Nuclear Fission: Nuclear fission is stated as the process that occurred at room temperature in which…

Q: What is the major obstruction to nuclear fusion and why?

A:

Q: Find the energy released in the fusion reaction {H + {H {H + }H

A: The energy released for the fusion reaction is,

Q: What is the strong nuclear force?

A: Define strong nuclear force. Definition: Strong nuclear force is an electromagnetic force which is…

Q: What is radioactive nuclide?

A: The nuclides which go through unconstrained rot are called a radioactive nuclide.

Q: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be…

A: The initial amount of the substance is, N0=140 grams

Q: Explain how radioactive decay has always warmed Earth from the inside and how nuclear fusion has…

A: The Centre of the earth is metallic. Metals such as uranium are undergoing radioactive decay.

Q: If a sample contains 20g of an isotope that has a half life of 1000 years. How much will be left…

A: Given data:  Initial amount of sample (N0) = 20 g Half life (T1/2) = 1000 years Required: Remaining…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.