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Nuclear Physics

Most commonly known for its applications in nuclear energy and nuclear weapons, Nuclear Physics also has applications in medicine and archaeology. This category is for questions about the branch of physics that deals with the study of the forces, reactions, and internal structures of atomic nuclei, Nuclear Physics.

3,164 Questions

Why nuclear power can be beneficial?

Nuclear power can be beneficial because it provides a reliable source of low-carbon energy that can help reduce greenhouse gas emissions. It also has a high energy density, meaning it can produce large amounts of electricity from a small amount of fuel. Additionally, nuclear power can help enhance energy security by reducing dependence on imported fossil fuels.

What is the difference between a nebula and nuclear fusion?

A nebula is a massive cloud of gas and other materials that is revolving around one focal point which is the most massive point and therefore has the strongest gravity which makes the rest of the cloud revolve around it. This eventually creates a star. Nuclear fusion on the other hand is simply the combination of two particles such as when hydrogen atoms collide to create helium (this is the most common kind of fusion in stars). Basically fusion takes two and makes one (basically, it can emit more particles too) while a nebula is a giant space cloud, the birth of stars.

Can you use tritium water as moderator in nuclear reactor?

Yes, tritium water can be used as a moderator in a nuclear reactor. However, tritium itself is a radioactive isotope of hydrogen, so careful handling and safety measures are required due to its potential health risks. Research is being conducted on the use of tritium in nuclear fusion reactors, but it is not commonly used as a moderator in fission reactors.

What is the process of estimating the age of an object using the half life of one or more radioactive isotopes called?

The process of estimating the age of an object using the half-life of one or more radioactive isotopes is called radiometric dating. This technique relies on measuring the amount of parent and daughter isotopes in a sample to calculate how much time has passed since the material was formed.

What is the half-life of a gamma globulin?

The half-life of gamma globulin varies depending on the type and specific formulation used, but it typically ranges from 21 to 28 days.

Why is sand radioactive?

The radiological risk due to the presence of natural and man-made

radionuclides in beach sands from several renowned seaside and riverbank

public beaches was estimated in this study. The exposure levels to terrestrial

radiation of the beaches were determined, as well as hazards due to human use

of the analyzed sands in industry and in building constructions. Specific radionuclides concentrations in the sand samples were determined by standard gamma-spectrometry. The corresponding radiation hazards arising due to the use of

sand as a building material were estimated by three different radiological hazard indices. The total absorbed gamma dose rate in the air was determined and

the corresponding annual effective dose outdoors was estimated. The obtained

data are relevant both from human health and environmental monitoring aspects.kiersten oberg

What is the mass number to an alpha particle and why?

Mass number is defined as the number of nucleons present in the nucleus. Alpha particle is nothing but the doubly ionized helium atom or the nucleus of helium atom. Nucleon is the common name both for proton and neutron. Helium nucleus has two protons and two neutrons. So the number of nucleons within it is 4. Hence mass number is 4.

What is the daughter product for the beta decay of iodine-136?

We know that iodine-131 will undergo beta minus decay, and an electron will appear as a result. (An electron antineutrino will also be produced, but we don't want to go there in this topic.)

What is the halflife of Carbon-11?

The half-life of Carbon-11 is approximately 20 minutes. This means that it takes about 20 minutes for half of a sample of Carbon-11 to decay into a stable isotope. Carbon-11 is commonly used in positron emission tomography (PET) imaging due to its short half-life.

When uranium ejects an alpha particle how many protons does the remaining nucleus have?

The atomic transmutation brought about by beta decay will depend on the type of beta decay. In beta minus decay, a neutron will be converted into a proton, and the nucleus will eject an electron. This makes proton count (and atomic number) increase by one and neutron count decrease by one. In beta plus decay, a proton is converted into a neutron and a positron (anti-electron), and this will make proton count (and atomic number) go down by one and neutron count go up by one. A link can be found below for more information.

What fact makes scientists believe that a strong force must be present in order to keep the nucleus of an atom intact?

Scientists believe that a strong force must be present to keep the nucleus of an atom intact because protons, which are positively charged, repel each other due to their electromagnetic forces. The strong nuclear force is able to overcome this repulsion and bind the protons and neutrons together in the nucleus.

What would oxygen 17 be if it went through an alpha and beta decay?

Oxygen-17 would become fluorine-17 after undergoing alpha decay, and then it would decay into oxygen-17 again after undergoing beta decay. Alpha decay involves emitting an alpha particle comprising two protons and two neutrons, while beta decay involves either emitting an electron (beta minus decay) or a positron (beta plus decay) to change the nucleus.

What is the nuclear equation for the decay of Po210 if it undergoes 2 alpha decay then a beta decay followed by another alpha decay.?

The nuclear equation for the decay of Po-210 undergoing 2 alpha decays followed by a beta decay and another alpha decay is:

Po-210 -> Pb-206 + 4 He-4 + 2 e-1 + 2 v

This equation represents the series of decays that result in the transformation of Po-210 into Pb-206, with the emission of two helium nuclei (alpha particles), two electrons, and two neutrinos.

Is transmutation of elements and nuclear transmutation are same?

Transmutation of elements generally refers to changing one element into another by altering the number of protons in the nucleus, while nuclear transmutation specifically refers to inducing such changes through nuclear reactions (such as bombarding a nucleus with particles). In this sense, nuclear transmutation is a type of transmutation of elements.

Is the alpha particle mass smaller than a neutron?

Alpha particles (helium nuclei) are much larger and heavier than beta (electrons) and gamma (high-energy photons). This means they do far more damage to anything they hit.

However, it also means can't travel very far and can be stopped by as little as a sheet of paper.

Radioactive isotopes that emit only alpha radiation are not very dangerous, the only danger is breathing in or ingesting the isotope.

A star produces energy by what?

Creating helium from hydrogen in its core. Combining two atoms to form a larger atom, releasing energy. E=MC^2

Why there is no repulsion between free electrons?

Free electrons most definitely repel each other.

Any attempt to create a buildup of electrons in a specific spot will eventually result in the repulsion amongst these electrons to overcome the attempt to collect them.

When you rub your skin against a wool rug on a dry day, you build up a surplus of free electrons on your skin. The repulsion between these free electrons cause this surplus to scatter to all parts of the skin, thus permitting a discharge of them to occur at any place in your skin.

What do quarks have to do with creating a beta particle?

Beta decay involves changing an up quark into a down quark (Beta+) or a down quark into an up quark (Beta-). This causes a neutron to change into a proton (Beta-) and emit a W- boson which decays into a beta particle (electron and electron antineutrino), or, with extra energy, it causes a proton to change into a neutron (Beta+) which emits a beta particle (positron and electron neutrino).

Quarks are involved because protons and neutrons are comprised of quarks in sets of three, two up quarks and one down quark to form a proton, and two down quarks and one up quark to form a neutron.

Does beta decay occur during the rearrangement of protons and neutrons in the nucleus?

Yes, beta decay is one of the processes that can occur during the rearrangement of protons and neutrons in the nucleus. Beta decay involves the transformation of a neutron into a proton or a proton into a neutron, along with the emission of a beta particle (electron or positron) and a neutrino.

What will alpha particles be when pick up electrons and stabilizes?

Alpha particles are helium nuclei. They don't change, per se, when they "pick up electrons", they just become non-ionic, and their charge becomes zero. They were, and become, so to speak, plain helium.

What correctly describes the charge of beta particles and alpha particles?

Beta particles have a negative charge, while alpha particles have a positive charge. Beta particles are electrons or positrons, while alpha particles are helium nuclei consisting of two protons and two neutrons.

What is the gravitational force on the moon?

1.623 newtons per kilogram of mass.

That's 16.55% of the gravitational force on Earth.

What can replace the growing need for electricity in nations other than nuclear reactors and power plants?

Renewable energy sources such as solar, wind, hydroelectric, and geothermal power can provide sustainable alternatives to nuclear reactors and power plants for meeting the growing need for electricity in nations. These sources are environmentally friendly, abundant, and can be harnessed to produce electricity without harmful emissions. Additionally, advancements in energy storage technologies can help to maintain a reliable supply of electricity from these sources.

What do you call a medical practitioner who treats cancer patients by means of alpha or beta particles?

A medical practitioner who treats cancer patients using alpha or beta particles is called a radiation oncologist. They specialize in using radiation therapy to target and destroy cancer cells while minimizing damage to surrounding healthy tissues.

Why does a coolant have to travel through sealed pipes?

A few of the reasons:

1. So that the coolant does not leak out of the system.

2. So that the coolant can be made to circulate through the pipes (pressure is required).

3. So that Pressure can build up in the cooling system. This allows the coolant to reach a higher temperature before boiling. Once at its boiling point, the temperature will not rise, and additional cooling is inhibited.