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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
Does beta radiation have a helium nuleus?
A stream of helium nuclei is alpha radiation.
Beta radiation is a stream of electrons.
Does alpha particles easily absorbed?
Yes, alpha particles are easily absorbed. They have a mass of 4 and a charge of +2. As such, they easily interact, being stopped, for instance, by only a few inches of air. Compare this with the neutron (mass 1, charge 0), electron (mass 1/1836, charge -1) and the photon (rest mass 0 charge 0) and you can see an increase in penetration as you go up the scale.
Why neutron mass is greater of proton mass?
A neutron could split into a proton plus an electron during the radioactive decay..
Carbon-14 dating is the measurement of an object's age by comparing the amount of carbon-14 to the amount of carbon-12 and carbon-13 present in the sample.
Why does gamma decay result in no mass loss for the atom?
A gamma decay is simply emission of a photon. Technically, there must be a tiny mass loss of E/c2 . Decay is not reallya goodword because there is no loss of electrons, neutrons or protons so the nucleus is unchanged in its make-up. There is of course energy decay.
Why is barium sulfate good shield against gamma rays?
Barium Sulfate is used as a radio contrast agent for radio imaging. Radio Contrast agents are those agents which improve the visibility of body parts in the process of X RAY. Barium is a heavy metal with a high atomic number of 56. Thus it absorbs radiations such as X Rays or Gamma Rays better than other metals thus preventing the radiation exposure to our body. Thus it is used as a shield against gamma rays.
Why number of neutrons greater than protons in heavier nuclide?
The extra neutrons are needed to keep the attractive strong nuclear force within the nucleus greater than the repulsive electromagnetic force of the protons in the nucleus. With heavy enough nuclei eventually this fails.
Half-life
Does natural latex emit radiation?
If natural latex did not emit some form of radiation, we would not be able to see it with the naked eye. Animals (including humans) see by transmuting radiation into neurological signals the brain interprets as sight. This process is called transduction.
How do you determine which beta decay occur spontaneously?
Beta decay occurs spontaneously in isotopes where the neutron-to-proton ratio is higher than what is stable, leading to the conversion of a neutron to a proton, electron, and antineutrino to achieve a more stable ratio. The decay is influenced by the weak nuclear force, which governs interactions at the subatomic level and can cause the transformation to happen spontaneously.
Are the Yakuta Russia enigmatic cauldrons radioactive?
Yes, they are planetary defensive mechanisms operated and fueled by a nuclear power plant under the earths crust
How are strong nuclear and weak nuclear forces alike?
They are the shortest range of the four forces, unable to act outside the diameter of the atomic nucleus.
How can nuclear be used more efficiently?
Nuclear energy can be used more efficiently by improving reactor design to increase energy output, utilizing advanced fuel technologies to reduce waste and extend fuel cycles, and enhancing safety measures to minimize risks of accidents. Additionally, investment in research and development of next-generation nuclear reactors, such as small modular reactors, can further improve efficiency and sustainability of nuclear power.
What is the probability that Beta minus decay will occur on a given neutron in a given second?
The probability is very close to zero.
Why is radioactive waste considered safe after 10 half lives?
I would consider it safe after 5 half-lives. by 5 it has decayed to 3% of original level, by 10 it has decayed to 0.1% of original level.
Are beta particles positive or negative?
Beta particles can be either positive or negative. It depends if an electron or a positrion is emited. Usually though, beta particles are negative as it is much more common for an electron to be emitted (though that does depend on the substance).
Are sound waves the building block of an atom?
No, sound waves are not the building blocks of an atom. Atoms are made up of subatomic particles such as protons, neutrons, and electrons that interact through electromagnetic forces, while sound waves are mechanical vibrations that travel through a medium like air or water.
What is the half life of Ativan tablets?
About 5750 years.What I meant was after after ingestion how fast does it start to work and how long does it last. Thank you.
The most convincing evidence are those that have backed Bob's story & the fact the Government tried to erase his existence-most likely a precursor to assassination. Congressman tried to find out the truth on the people's behalf but were denied entry.
How long does it take for radioactive carbon 14 to complete 4 half lives?
To complete 4 half lives, it would take 4 multiplied by the half-life of carbon-14. The half-life of carbon-14 is about 5,730 years, so it would take approximately 22,920 years for radioactive carbon-14 to complete 4 half lives.
I linked an article below that describes a rather unscientific theory of mass extinction resulting from a so-called "Neutrino Bomb;" one of the effects caused by a "silent" stellar collapse.
However, if you're inquiring about what a neutrino bomb would be as an actual, explosive device, continue reading.
I suppose a neutrino bomb, if such a thing were even remotely possible, would be a bomb that either a) released an incredible amount of neutrinos in an attempt to induce an irreversible amount of damage to the human body from the increased number of ionized radiation events, or b) produced enough neutrino-antineutrino annihilation events to actually cause damage from the energy released from those events.
The absurdity of both of those ideas is so extreme, that I actually had a difficult time typing them out. To understand why, consider the following:
a) Around 65 billion neutrinos, from the sun alone mind you, pass through every square centimeter of your body every second. However, only about 2 or 3 of those neutrinos will actually react inside of your body throughout your entire life.
b) The amount of lead (Pb) that would be needed to react with even half of the neutrinos passing through it, would need to be a light year long in the direction that the neutrino was traveling; that's 10 trillion kilometers.
c) Those incredibly large neutrino detectors that were built to experimentally show that neutrinos have mass (see linked picture) only observed 10 or so neutrino reactions a day, and that's after they were maximized for detection in every conceivable way.
d) Assuming that neutrinos and antineutrinos are different particles (we still don't know), and assuming that a substance was created that was dense enough to produce multiple neutrino-antineutrino annihilation events (not a single annihilation event has ever been observed, by the way), the amount of energy that each of the resultant gamma rays would have from each annihilation reaction would be around 1 MeV. For the sake of comparison, the radioactive isotope, 40K, that is found inside every single person on Earth, releases four hundred 1.5 MeV gamma rays per second inside the human body. Those gamma rays do an undetectable amount of damage, if any damage at all, to the human body throughout its entire lifespan, so it's highly unlikely that the few neutrino-antineutrino annihilation events that would happen from the bomb, if any would happen at all, would be very harmful.
Hardly, since the hardly ever interact with matter, and don't have much energy.
