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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

An atom 134 84Po of decays by alpha decay Which atom is left after the decay?

Since an alpha particle contains 2 neutrons and 2 protons (for a total of 4 nucleons), you are supposed to subtract that from the nucleus. In other words, you will get isotope 171 76 (4 nucleons less, 2 protons less).

APEX 171 76 Os

How do you know that 1-thousand hiroshima size bombs would destroy earth?

Scientists estimate that an explosion equivalent to one thousand Hiroshima-sized bombs would release enough energy to cause catastrophic global destruction, including severe climate disruption, mass extinctions, and potential collapse of civilization. While Earth itself would not be obliterated, the consequences of such an event would likely have devastating and widespread effects.

Where is the Higgs boson located?

The Higgs boson is a subatomic particle that can be found in high-energy particle physics experiments, such as those conducted at the Large Hadron Collider (LHC) at CERN in Switzerland. It is not located in a specific place but is created temporarily in particle collisions before quickly decaying into other particles.

What is the ionising power of alpha?

alpha particle is the heaviest(compared to gama and beta particle).....it has got haish positive charge and moves with a speed lower compared to beta and gama particle and therefore it ionizies the particles around it as it moves in its path

What is a cyclotron operator?

A cyclotron is a type of particle accelerator used in nuclear physics and nuclear medicine. A cyclotron operator is a specialist in the operation and maintenance of such a device. Operators are required to understand the physics of cyclotrons as well as beam physics.

What is nuclear power used for electricity produced by?

These questions are for nerds, so i think whoever is into those stuff are nerds, Geeks,loners,and homosexuals.

This guy ^ Clearly is ignorant. if we're looking it up on here it means we dont know it. If we were nerds we'd know the answer so we wouldn't have to look it up! LOL, Who's ignorant now? still you ;D

If you had a 100 gram sample of plutonium how much would be left in 43 years?

The half life of the isotope 239Pu (the most known plutonium isotope) is 24,200 years; 43 years is practically nothing in comparison is 24,200 years so you would still have 100 grams.

The half life of Rn-222 is 4 daysWhat was the original mass of a sample of this isotope remains after 21 hrs?

The half-life on 222Rn86 is 3.8235 days. A sample of this isotope will decay to 0.8533 of its original mass after 21 hours.

AT = A0 2(-T/H)

AT = (1) 2(-21/(24*3.8235))

AT = 0.8533

What is the half life of iodine-129?

Iodine-129 has a half-life of 15.7 million years and is used in some medical applications. Because of its release in nuclear testing and reactor accidents, it is a potent bio-contaminant and can affect the human thyroid gland.

Its human biological half-life is about 100 days (in the thyroid gland).

Does an alpha particle have a relative mass of 1 amu and no charge?

No, an alpha particle has a mass of 4 amu and a charge of +2. It is a helium nucleus. The neutron has a mass of 1 amu and no charge.

How to identify the types of radiation given off by radioactive particles?

Radiation emitted by radioactive particles can be identified through their energy level, penetration ability, and ionizing capability. Geiger-Muller detectors, scintillation detectors, and dosimeters are commonly used to detect and identify types of radiation. Different types of radiation include alpha particles (helium nuclei), beta particles (high-energy electrons), and gamma rays (high-energy electromagnetic radiation).

What is pharmaceutical half life?

Pharmaceutical half-life is the time it takes for half of a drug to be metabolized and eliminated from the body. It helps determine dosing frequency and how long a drug remains effective in the body.

Three grams of Bismuth-218 decay to 0.375 grams in one hour What is the half-life of this isotope?

If three grams of a radioactive isotope decay is 0.375 grams in one hour the half life of the isotope is 20 minutes.

AT = A0 2(-T/H)

0.375 = (3) 2(-1/H)

0.125 = 2(-1/H)

ln2(0.125) = ln2(2(-1/H)) = -1/H

-3 = -1/H

H = 20 minutes

Note: The half-life of Bismuth-218 is 33 seconds, so this question is invalid as stated. The answer is correct.

What part of the atom does nuclear radiation come from?

Nuclear radiation comes from the nucleus of an atom. It can be emitted in the form of alpha particles (helium nuclei), beta particles (high-energy electrons), or gamma rays (high-energy electromagnetic radiation).

Is the weak nuclear force associated with static cling?

No, the weak nuclear force is not associated with static cling. It is the electromagnetic force that is responsible for static cling. Static cling is the result of the movement of electrical charges, and the difference in electrostatic potential that happens when charges move is what attracts things.

What is an accelerated motion?

Accelerated motion is when an object's speed changes as it moves, either increasing or decreasing. It can be caused by changes in direction, speed, or both, and is characterized by a non-constant velocity.

How is a uranium-235 nucleus made to undergo fission?

Nuclear fission is the splitting up of big atomic nuclei. Uranium is quite a large nuclei. Each time a uranium atom splits up, it spits out two or three neutrons. One of which might hit another nuclei causing it to split - thus keeping the chain reaction going. The uranium atom - when hit by a neutron splits into Barium and Krypton.

What will U-244 turn into after alpha decay?

If a uranium-244 atom undergoes alpha decay, it will become an atom of thorium-240. If we wrote an equation, it might look like this:

92244U => 90240Th + 24He++

The uranium-244 is transmuted into throium-240, and the alpha particle, which is a helium-4 nucleus (and represented as such) emerges at the tail end of the equation.

What is the change in atomic number when atom emits gamma radiation?

When a beta particle is emitted from a nucleus via Beta- decay, the mass number stays the same, and the atomic number goes up one, because one neutron is changed into one proton by Beta- decay.

In Beta+ decay, the opposite is true. A proton is converted into a neutron, again keeping the mass number the same, but in this case reducing the atomic number by one.

The ending result is different, however. In Beta-, the beta particle is an electron, while in Beta+, the beta particle is a positron.

Gamma rays are streams of what?

Gamma rays are streams of high-energy electromagnetic radiation emitted by the decay of radioactive atoms or by other high-energy processes in the universe.

Half life of helium?

1. It lasts for as long as the universe in theory, as it does not decay into any other element unless it's in a star, where it will undergo fusion into "heavier" elements

.

2. In a balloon, it easily diffuses through the balloon skin and "leaks" away into the atmosphere, so maybe a day or so.

3. In the atmosphere, it gradually diffuses out into space, but is replenished by natural generation.

Can somethings decay constant change. ive been asked this question. the isotope strontium-90 has half life of 28 years Calculate its decay constant in units of year-1 and second-1. please help?

Decay constant and half life are mathematically related. One cannot change without the other changing, so - no - an isotope's decay constant cannot change.

Do not confuse this with the fact that isotopes form other isotopes as they decay, and those other isotopes might have different half lives, so the gross observation of total activity may seem to indicate a change in rate - the reality is still no - the decay constant of a particular isotope does not change.

What are the characteristics of an alpha particle?

An alpha particle is a type of nuclear decay product that consists of two protons and two neutrons bound together. It has a high ionizing potential and low penetration power, making it relatively easy to shield against. Alpha particles are commonly emitted by some radioactive materials such as uranium and radium.