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Nuclear Physics

Parent Category: 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.


Perhaps it was the M65 atomic cannon, a 280 mm towed gun that fireda nuclear tipped projectile.
Electron capture is the absorption of an electron by an atomicnucleus if that nucleus is neutron poor. An electron is captured,usually from an inner electron shell of that atom, and it willconvert a proton in the nucleus into a neutron. We know that aneutron is converted into a proton and an...
Alpha particles consist of 2 protons & 2 neutrons. These particles, then, have charge +2
E=MC 2 When energy gets to a certain level, it creates a particle and an antiparticle, and this process is called pair production Mr_Adams: E is energy and M is mass, but the surprise (and explanation behind the existence and creation of antimatter) is C is not a variable, it is a constant:...
Isotopes are very similar in their physical and chemicalproperties, so they would act the same. They differ by only 5neutrons, and Kr is not very reactive anyway.
A beta particle comes out due to decay of neutron into proton andelectron
First light is not a mechanical wave and so its velocity will notbe affected by the speed of any material medium.
It depends on the element, but uranium (for example) eventuallybecomes lead after passing through a series of intermediateelements.
Depending on the energy you can simply use varying thickness sheetsof metal or plastic.
Beta particles or radiation is an electron emitted at high speed or energy from some types of unstable elements in a process known as beta-decay. Beta radiation is not healthy for living things. It is usually stopped by a few millimeters of metal, wood, or plastic. Direct exposure to the skin can...
it causes cancer because all of the chemicals and they are so strong and it especially gives it to kids because they aren't fully developed.
Proton: 1,007 276 466 77(10) atomic mass units (u) Neutron: 1,008 664 915 6 (6) atomic mass units (u) Electron: 5,485 799 094 3(23).10 -4 atomic mass units (u) If you set the mass of an electron as 1 Then the mass of a proton is 1835 (Approx) The mass of a neutron is 1836 (Approx)
The total of all electromagnetic waves is called theelectromagnetic spectrum. . The electromagnetic spectrum includes radio waves, microwaves,infrared radiation, visible light waves, ultraviolet radiation,x-rays, and gamma rays. Only visible light waves, which humans seeas the band of colors from...
Either... 1. The time it takes half of the atoms of an isotope to decay. 2. One of the first 3D games, made by Valve, taking place in an underground research facility called Black Mesa. You play as a crowbar-wielding scientist, Gordon Freeman. You should play it, it's fun!
Once radioactive decay has finished, the atom will be a new element, and will be a lot more stable
Gamma rays being an electromagnetic wave are transverse in nature.
Yes, the decay of unstable atomic nuclei is the source of nuclear radiation.
It will stop when there is nothing left to decay. There isbasically no way to stop certain nuclides (isotopes) from decaying.
As alpha comes out then the atomic number gets reduced by 2 andmass number by 4 If beta comes out then no change in mass number but with anincreases in atomic number by 1 As gamma ray comes out there is no change in both atomic and massnumber but a change in the energy level.
The time depends on the atom. But if you are asking what the time is called, it is called a half-life.
-- Compare: They're both electromagnetic radiation. -- Contrast: X-rays have longer wavelength, lower frequency, and carry less energy, than gamma rays.
Because is practically impossible to obtain the critical mass of uranium in nature; a strange exception was the Oklo mine in Gabon.
A meltdown. In layman's terms, it's called "a catastrophe."
Due to a large number of Nucleons (protons+neutron) the nuclearbinding force is not enough strong to hold the nucleons unite.
It gets split into elements of lesser atomic number with productionof neutrons
The equation for the beta decay of 60 Co is: 27 60 Co --> 28 60 Ni + -1 0 e. where the -1 0 e is a negative beta particle or electron.
Remember that the amount you have left will be cut in half every 50 days. Day 0: 200g Day 50: 100g Day 100: 50g Day 150: 25g Day 200: 12.5g Day 250: 6.25g Day 300: 3.125g Day 350: 1.5625g Day 400: 0.78125g Day 450: 0.390625g Day 500: 0.1953125g Day 550: 0.09765625g Day 600...
Because they are the most fissile materials available.Specifically, Uranium-235 (0.7% of natural Uranium), Plutonium-239(produced in reactors from Uranium-238), and Uranium-233 (producedin reactors from Thorium-232) are the easiest to fission (split)with neutrons, producing enough new neutrons to...
All elements above the atomic number of 83 are radioactive, but two elements that are under it are also radioactive. They are technetium (atomic number 43) and promethium (atomic number 61). Radioactive elements are elements that decay until stable. =)
Nothing really. Beta particles are electrons or positrons (the antimatter counterpart of electrons), and alpha particles are two protons and two neutrons (a helium nucleus). I guess the only things that they share are speed, and particles in them that have electric charge.
Involving fission & fusion at the same time? These reactionsare completely different from each other and have no physical ormathematical relationships. I suppose you could claim that ahydrogen bomb that uses a fission trigger is an example of such anequation, however, the fission occurs before the...
daughter: Thorium-234 . granddaughter: Protactinium-234 . great granddaughter: Uranium-234 . great great granddaughter: Thorium-230 . great great great granddaughter: Radium-226
The "strong force," or sometimes called the "strong nuclear force." This is the exchange of gluons between the protons and neutrons.
Yes, a nuclear reactor produces nuclear radiation. Nuclear reactions in the core produce energy, and they also produce different types of radiation.
The radioactive alpha particle has the same structure as the atomicnucleus of helium. They are usually formed and emitted during alphadecay.
By a particle accelerator, which speeds atoms up reeeaaaallly fast,which makes them more massive according to E=mc^2.
It depends... The alpha particle, 2 4 He 2+ , has the strongest electric charge. However, because of that, and also because it has the largest mass (4 AMU), it has the least penetrating power of all of the radioactive particle emissions. In contact with sensitive tissue, such as in the lungs or...
They emit radiation as they decay. That radiation is not generally detectable by human senses (unlessit glows in a color range we can see). We need lab instruments to detect the radiation such as: . Geiger Counter, with Geiger-Mueller (GM) Tube orProbe- A GM tube is a gas-filled device that, when a...
The thyroid gland is often imaged using a salt of iodine-131as this gland has a high uptake of iodine.
One of the primary uses of Americium-241 is as an alpha emitter in the ion chamber of a smoke detector.
After the beta decay of the isotope magnesium-28 the isotope aluminium-28 is formed. 28 Al has 13 protons and 15 neutrons - the mass number is 28.
Perhaps you can't, but carbon dating is not used on mineralized fossils. The igneous rock above and below the fossil strata is radiometricly dated, Carbon dating is only good on material containing carbon; material less than 40,000 years old.
Quarks are fundamental particles, and three of them make up the particle group we call the baryons . The two common baryons we encounter are the proton and the neutron , which are composite particles made of of three quarks each. The proton is composed of two up quarks and a down quark, and...
The mass of a proton is 1.672 621777(74)x 10 to the power of -27, in grams.
False Neutrons and PROTONS are held together by strong nuclear force Electrons arent held to the neutrons at all
The ticking of a clock is constant, occurring at a steadyrhythm/frequency. While the decay of radioactive elements cannot be determined at aparticular point in time, they do decay at a fairly steady rateover time. This allows you to statistically determine the rate atwhich a mass of radioactive...
Radioactive decay only changes the number of nucleons ( i.e.protons or neutrons ) or the energy of an atom to form an isotope.Changing the number of electrons would form a ion.
part of actinium radioactive
No two physical objects can occupy the same point in space at the same point in time. therefore when they meet the result is a collision instead of passing through one another. hoped it helped, ;) Lia x
The half life of thorium-219 is 1.05 microseconds.
The individual protons and neutrons are basicallyindistinguishable; they don't have different names.
Unstable isotopes (the stability depends on the number of protons and neutrons in the atomoc nucleus, the atomic mass, etc.) are all radioactive.
Nuclear fission has advanced science in that it has led to thedevelopment of the most powerful weapon ever created, the atomicbomb. Also, nuclear fission is used in nuclear power plants toevaporate water to move turbines.
Because alpha particles have so little mass, they cannot overcome the inertia of other atoms or molecules without great difficulty.
Certain isotopes of some elements can undergo fission. In nature, the only substance that does this is uranium-235, which is less than 1% of all uranium. When U-235 undergoes fission, it makes two much lighter new atoms, and three neutrons. When one of these neutrons hits an atom of U-235, it causes...
That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron. That is called an anti-electron, also known as a positron.
The first nuclear reactor was in former Soviet Union that operatedin year 1954 at obninisk.
The island of Komodo, a small island off the west coast of new guinea
Uranium is not lighter but heavier than many of the other elements; the density of uranium is 19,05 g/cm 3 and the atomic weight is 238,02891.
alpha and beta radiations do not travel at the speed of light,but gamma rays and the rest of em spectrum rays do.
A quarter! After 12.32 years the remainder is one half After another 12.32 years (so 24.64 in total) the remainder is one half of the former half, thus 1/2 * 1/2 = 1/4 Formula: m to = m t * 2 {t / t(1/2)} m t = mass on time t (in this calcul 24.6 year) m to =mass on...
fission rate is slowed in nuclear reaction by using neutron control materials that having high neutron absorption capacities (like Cadmium and Boron).
Both helium-3 and helium-4 are stable, and neither will spontaneously undergo nuclear change.
None. Building a nuclear power station is a job for engineers.
The risks associated with fission reactors have been greatly exaggerated, with funding from other interests in the energy industry. Even if the risks were to be as great as suggested by the coal industry, they are only risks. The damage to forests, and people's lungs, from acid rain is an...
Physics theory recognises four physical forces, the strong nuclear force, the weak nuclear force, electromagnetic force, and gravity. Clearly in a nucleus with a number of protons, each with a positive charge which would repel each other under electromagnetic forces, there must be something which...
the particles would all become de-localised, and no elements would exist, just sub-atomic particles.
Since the positron is the antiparticle of the electron, it followsthat the electron is the antiparticle of the positron.
The equation for the beta decay of 165 Ta is: 73 165 Ta --> 72 165 Hf + 1 0 e + v e . where the e is a positive beta particle or positron.
When helium reacts with fluorine it gives neon and proton
The Higgs boson was first theorized in the 60's, and now, at CERN, the LHC (Large Hadron Collider) has just reopened after some technical difficulties. This machine will collide particles up to 3.5 Tev. The hope is that in the debris, a Higgs boson will materialize, probably for a very, very short...
This reason is, simply, very obvious. Compare the numbers: 238 and 16. Since the orbitals are more full, and the nucleus is packed tighter, and Uranium is located after atomic number 84, it is unstable. All of the elements after 84 are unstable. But that doesn't count isotopes of the earlier...
The fizzing in this case is the result of a chemical reaction. Acid attacks limestone, calcium carbonate, to produce a salt, liberating carbon dioxide in the process.
It takes 5 half lives. The sample has been reduced to 3/96 or 1/32 of its original activity. This is 1/2 to the power of 5.
-Down and anti-Down quark, -Up and anti-Up quark or -Strange and anti-Strange quark
Lead-210 (Pb-210) is an isotope of lead where the atoms have 3 more neutrons than lead-207, which is the most common version of lead.
I think they are all diesel except for naval vessels in some navies, and some ice-breakers in Russia.