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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

If you have three objects that each emit alpha beta and gamma respectively and which one do you throw away which one do you hold in your hand and which one do you put in your pocket?

You throw away the gamma-emitting object due to its high penetrating power, hold the beta-emitting object in your hand as beta radiation can be stopped by skin, and put the alpha-emitting object in your pocket since alpha radiation is the least penetrating and can be stopped by clothing.

What kind of particle is emitted?

Particles emitted can be in the form of alpha particles, beta particles, or gamma rays. Alpha particles consist of two protons and two neutrons, beta particles are electrons or positrons, and gamma rays are high-energy electromagnetic radiation.

Uranium-235 is bombarded with neutrons and splits into smaller nuclei and produces a great amount of energy?

This process is known as nuclear fission and is the basis for nuclear power plants and nuclear weapons. The energy released during this process is harnessed to generate electricity in nuclear power plants. This reaction also produces additional neutrons that can sustain a chain reaction, leading to a continuous release of energy.

How much heat is generated in a nuclear fusion?

In nuclear fusion, a small amount of heat is generated due to the high temperatures required to fuse atomic nuclei together. This heat can be harnessed to produce electricity through various methods, such as heating water to create steam to drive a turbine. However, the amount of energy produced by fusion reactions is significantly greater than the heat generated.

How can a particle itself be it's antiparticle?

Answer:I suppose that means that all relevant properties are neutral, so when they are inverted, nothing changes. For example: the proton has a positive electrical charge, but the antiproton has a negative charge. The neutron has no electric charge, so the antineutron has no charge either - but there are still a few other properties where the antineutron is the opposite of the neutron. A photon doesn't have these properties (in other words, it has them equal to zero), so it is its own antiparticle. Answer:There is a relativistic wave equation called the Majorana equation, that predicts that neutrinos and antineutrinos are, in fact, the same thing. Some experimentation is being done to find out whether this is true. There is a link to a Wikipedia article below.

What is the element with the most mass per nucleon?

The element has the lowest mass per nuclear particle is Iron, while hydrogen is the element with the highest mass per nuclear particle.

Cause "nuclear particle" here means particles forming nucleus, like proton or neutron. Hydrogen has just one proton, and an atomic mass of 1.00794, it's mass per nuclear particle is also 1.00794. For heavier elements like Iron, they have higher atomic mass but also more particles in their nucleus. For instance, iron has 26 protons and 30 neutrons, and an atomic mass of 55.847, it's mass per nuclear particle should be 55.847/(26+30)<1, which is much smaller than that of hydrogen.

Which control scheme is applicable to packed bed reactor?

Packed bed reactors typically use either continuous flow or batch operation control schemes. Continuous flow control involves regulating reactant feed rates and temperature to maintain desired reactor conditions. Batch operation control focuses on monitoring and adjusting parameters (such as temperature and pressure) over a set time period for each batch of reactants.

Does nuclear fission take place in an uranium bar?

Yes, with a rather unimportant qualification. There are isotopes of uranium that do not undergo fission, but it is unlikely a bar would be made from any of them because they have short half lives and are expensive to produce.

How are the products of the fission of U-235 transformed into household energy such as electricity?

Nuclear energy creates heat in the fuel, which is transferred to the reactor coolant and then used to produce steam. This is used in a steam turbine to provide mechanical energy which then produces electrical energy in the generator. This is then transferred in high voltage grid lines and transformed down to your house voltage in a local transformer

Atoms keep decaying until?

they reach a stable state by achieving a balance between the forces that hold the nucleus together and those that try to pull it apart. Once this stability is reached, the atom no longer undergoes radioactive decay.

Where you can find large deposit of deuterium?

Large deposits of deuterium can be found in seawater, particularly in regions with high concentrations such as the Arctic Ocean. Deuterium can also be extracted from heavy water (D2O) which can be produced through electrolysis or distillation processes. Lastly, deuterium can be found in trace amounts in minerals and deposits of deuterated compounds in the Earth's crust.

The way you express the time it takes for atoms in a radioactive substance to distintegrate is called?

The time used for dealing with nuclear decay is called a half life.

Decay of a radioactive atom is something that happens by change, and the atoms of one isotope may be more or less prone to decay than the atoms of another. The way we normally express the rate of decay is to speak of the amount of time it takes for half of the atoms in a sample to decay, which is the same as the time during which any one atom of the sample has a 50% chance of decaying.

What is it when energy is released through fission or fusion?

When energy is released through fission or fusion, it is known as nuclear energy. Fission involves splitting atoms, releasing energy, while fusion involves combining atoms, also releasing energy. Both processes result in the conversion of mass into energy, as described by Einstein's famous equation E=mc^2.

What is the half life of thorium 219?

== == Naturally occurring uranium is a mixture of three isotopes. The most abundant (greater than 99%) and most stable is uranium-238 (half-life 4.5 x 109 years); also present are uranium-235 (half-life 7 x 108 years) and uranium-234 (half-life 2.5 x 105 years). Different isotopes have different half-lives. The most stable isotope of uranium, 238U, has a half-life of about 4.5 billion years.

Nuclear fuels are bombared by what particles to induce their fission?

Nuclear fuels are bombarded by neutrons to induce their fission reaction. Neutrons are able to penetrate the nucleus of the fuel atoms and cause them to split, releasing energy and more neutrons in the process. This chain reaction is the basis for nuclear power generation.

220 RN yields to alpha particle po-216 what particle or type of radiation needs to be included to balance the equation?

To balance the nuclear equation, a beta particle (negatron) must be included. The balanced equation would be 220/88 Ra -> 4/2 He (alpha particle) + 212/86 Rn + 2 -1 e.

Can gamma rays be stopped by a thick sheet of lead?

Yes, gamma rays can be stopped by a thick sheet of lead. Lead is a dense material that is effective at absorbing gamma radiation. The amount of lead required to fully block gamma rays depends on the energy of the rays.

How is radioactivity and half life related?

Radioactivity is the process by which unstable atomic nuclei release energy in the form of radiation. Half-life is the time it takes for half of a radioactive substance to decay. The concept of half-life is used to measure the rate at which a radioactive substance decays and is a key parameter in understanding and monitoring radioactivity.

Do nuclear reactors use lasers?

Nuclear reactors do not typically use lasers as a primary component in their operation. Lasers are more commonly used in research, industry, and medical applications. Nuclear reactors rely on controlled nuclear fission reactions to generate heat for electricity production.

Are there any fusion reactors operating now?

i believe they are still in the testing phases... but I have heard of one that was in operation not sure I would have to do some research again?

So going on from here, Fusion reactors are still being tested small scale, and according to wikipedia, the worst source in the world. They are not expected to be used commercially untill atleast 2050.

What aspects of the composition of a nucleus can cause it to be unstable?

The two aspects that cause the nucleus of any element atom to be unstable are:

  • not have the specific neutron/proton ratio to be a stable nucleus, and or
  • having number of protons that exceeds the stability limit (exceeding 83).

Referring to question below for more information.

After undergoing alpha decay an atom of radium -226 becomes?

Radium 226 decays by alpha emission to Radon 222. A helium nucleus is emitted by alpha emission which makes the mass reduce by 4 and its atomic number by 2.

What makes X-ray's nickname so ironic?

X-ray's nickname is ironic because X-rays are a form of electromagnetic radiation that can penetrate solid objects, yet X-ray in the story has poor eyesight and needs glasses to see. This contrast between the powerful nature of X-rays and the character's visual impairment creates an ironic twist.