What nuclear reaction involves changes in the core or nucleus.

Q: Why does a neutron make a better nuclear bullet than a proton?

A: A neutron has no charge, so it will not be repelled or absorbed between neutrons and the nucleus.

Q: What is alpha decay?

A:

Q: Which refers to the continuous release of nuclear energy caused when one fission reaction triggers…

A: When a nucleus fissions reaction takes place, the neutron breaks the target nucleus into further…

Q: What is the number of a nucleus?

A:

Q: Which of the following quantities are conserved in all nuclear reactions? 1) Electric charge 2)…

A: Charge, Spin, Isospin, Strangeness and Baryon number are the quantities that remain conserved during…

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: Is this statement true? "An electron takes various pathways from a beta-decaying nucleus to a…

A: The Geiger counter detects alpha and beta particles and gamma radiations.

Q: The process of combining nuclei together and making larger nuclei is called O Joining O Fusion O…

A: The process of combining nuclei together and making larger nuclei is called

Q: How is a strong nuclear force is transmitted between a proton and neutron?

A: Nuclear force: Nuclear force is one of the fundamental interaction. It is the strongest of all.…

Q: Describe the process in a nuclear fission reaction.

A: Nuclear fission is the process by which the nucleus of an atom is divided into two or more smaller…

Q: A radioactive sample starts with 800,000 undecayed nuclei. After 12 hours, 700,000 of the nuclei…

A: Given data-                         initial no of nuclei in the sample (N0) = 800000…

Q: what happens to a nucleus if the mass number increased?

A: The mass number of any element is the sum of the total number of protons and neutrons in the…

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: What is beta particle?

A:

Q: What makes nuclear radiation so useful?

A: Nuclear radiation is energy that is released by elementary particles of the atomic nucleus caused by…

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: What are the pros and cons of nuclear fission?

A: Nuclear fission: When the nucleus of an atom splits into lighter nuclei through a nuclear reaction…

Q: Two nuclei have mass number in the ratio 1:8 what is the ratio their nuclear radius

A: Given data, Ratio of mass numbers = 1:8

Q: What is nuclear force?

A: Nuclear force is one of the four fundamental forces of nature.

Q: The half-life of l-137 is 8.07 days. If 25 grams are left after 40.35 days, how many grams were in…

A: The formula of the radioactivity is  where, N is the amount left, No is the initial amount, t is…

Q: What is critical mass?

A: Radioactivity is the process by which an unstable nucleus converts into a stable nucleus. There are…

Q: What is given off by beta decay?

A:

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: Include 2 reactions that take place in a nuclear reactor

A: Two types of reactions that occur in the nuclear reactor (1) nuclear fission (2) nuclear fusion

Q: What holds the nucleus together?

A: Nucleus: A nucleus is a group which mainly consists of two bodies that are proton and neutron. The…

Q: What is gamma radiation?

A: Gamma radiation is an electromagnetic radiation having shortest wavelength as compared to other…

Q: A certain radioisotope has a half-life of 8.96 days. What percentage of an initial sample of this…

A:

Q: What isotope is produced when U-239 emits a beta particle?

A: The decay equation of Uranium 239 is given below:

Q: What occurs when a nitrogen nucleus captures an extra neutron?

A: A neutron is captured by the nitrogen nucleus

Q: What is given off by gamma decay?

A: In a gamma decay, unstable nuclei undergo decay to emit excess energy in the form of gamma rays.

Q: Using 2.3 × 1017 kg/m3 as the density of nuclear matter, find the radius of a sphere of such matter…

A: The equation for the density is given by,

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.