Nuclear Physics

Although all people do contain a small amount of radioactive isotopes in their bodes, making them slightly radioactive, it is not nearly a large enough dose to have any noticeable effects. But if you mean a person who is highly radioactive, then the most likely way for that to happen is if a radioactive substance were to enter that person's body. The effects of that would depend on the dose and the substance. For instance, plutonium, which emits alpha, beta and gamma rays causes radiation sickness and an increased chance of cancer. And radium which emits more alpha rays then beta or gamma rays and is much more radioactive then plutonium causing much the same effects and decays into radium. As radium is chemically similar to calcium, it can cause great harm by replacing calcium in the persons bones.

Nuclear radiation doesn't affect the ocean itself, but the animals that live there. Just like any living thing, if an ocean animal is exposed to high level of radiations it might develop mutations, and/or cancer, leading to a painful death.

Neptunium is a radioactive actinide element with the atomic number 93. It is situated in the actinide series of the periodic table, which is the row below the lanthanide series, between uranium and plutonium.

The most promising equipment is the Tokamak, which is a circular toroidal chamber in which the gaseous plasma is circulated and heated, and constrained by magnetic fields. This was developed initially in the Soviet Union but has been adopted in several countries as a research and development tool. Up to now the best results have come from the JET (Joint European Torus) at Culham UK. A larger version is to be built in France called ITER, but it will be years before it is built and being used. You can find ITER and JET on Wikipedia and other websites .

All of them - alpha - beta - neutron - visible light - are examples of nuclear radiation.

Lawrencium has a half-life of about 215 minutes. After 30 minutes, about 85% of the original sample would remain. Therefore, approximately 4.25 grams of lawrencium would still be present in a 5-gram sample after 30 minutes.

The radioactivity level of thorium is considered to be low to medium. Thorium emits alpha particles, which have low penetration power and are not a significant external radiation hazard. However, proper handling and disposal protocols are still necessary due to its radioactive nature.

The fusion barrier in nuclear physics refers to the energy threshold that two atomic nuclei must overcome to fuse together and release energy, as in a nuclear fusion reaction. It represents the energy required to bring the positively charged nuclei close enough for the strong nuclear force to overcome the electrostatic repulsion, allowing the nuclei to fuse.

Because each amount is halved over the time it takes for the half life process

for instance A Isotope has a half life of 20 years

If it starts off with 12,000

then in 20 years it'll be 6,000 (halfed)

another 20 years it'll be 3,000

so no matter how much there are, it will always decrease by half

Fermium undergoes primarily alpha decay, where it emits an alpha particle consisting of two protons and two neutrons. This process reduces the atomic number by 2 and the atomic mass by 4.

One of the radioactive substances with the longest half-life is thorium-232, with a half-life of about 14 billion years. Another example is uranium-238, which has a half-life of about 4.5 billion years.

Roentgenium was discovered in 1994 by S. Hofmann, Victor Ninov, Fritz Peter Hessberger, Peter Armbruster, H. Folger, Gottfried Münzenberg, H.J. Schött, Andrei Georgievici Popeko, Aleksandr Vladimirovici Eremin, A.N. Andreeev, S. Saro, R. Janik, Matti Leino at Gesell schaft fur Schwerionenforschung (GSI) near Darmstadt (Germany).

Beta particles are electrons (β-) or positrons (β+), which have a very small mass and charge. Due to their small mass, they are not significantly affected by a strong magnetic field as their momentum is not large enough to cause a substantial deflection. The force experienced by a charged particle in a magnetic field is proportional to its charge, velocity, and the strength of the magnetic field, and for beta particles, this force is typically not enough to cause a noticeable deflection.

Some limitations of GM counters include limited efficiency at high count rates, inability to discriminate between different types of radiation, and the need for periodic calibration and maintenance. Additionally, GM counters are typically bulky and require a high voltage power supply for operation.

The "fermion sign problem" refers to a computational challenge in quantum many-body problems when simulating systems of fermions using Monte Carlo methods. As fermions follow the Pauli exclusion principle, the wavefunction must be antisymmetric under particle exchange. This can lead to an exponentially growing number of configurations needed to accurately simulate the system, making calculations computationally demanding or impractical.

The reactor itself does not make a lot of sound when operating. Nuclear fission is silent, but moving water in the core (in a pressurized water reactor) might be heard as it circulates. But it would not be easy to put your ear to the reactor vessel as radiation levels would be very high and the vessel would be very hot. Certainly the pumps that are running to circulate coolant will be audible.

Plutonium has 20 isotopes; each isotope has another half-life. Please read: http://en.wikipedia.org/wiki/Isotopes_of_plutonium.

The half-life of the isotope uranium-238 is 4 468 000 000 years.

Alright so you begin with what you need, this isotope of Protactinium has 234 nucleons, its atomic number is 91, in Beta decay we release an electron, which has no nucleons (protons and neutrons) and an atomic number of -1 so when we take out -1 from 91, so 91 - -1 we get 92, which is of course Uranium, this particular isotope has 234 nucleons, now, to show where it has gone, write the electron in, and add a antineutrino aswell, heres how mine looks.

Pa23491 ---> U23491 + e0-1 + antineutrino (a v with a little line above it)

Hope this helps :)

It is not yet discovered since all of the uranium isotopes are having half life for several millions of years. We would be able to find it after atleast 700 millions of years.

The appreciable radioactivity of uranium is mainly due to the isotope uranium-238 (U-238). U-238 is a naturally occurring isotope that undergoes alpha decay, emitting alpha particles and transforming into thorium-234.

The fossil would be approximately 600 years old. We can calculate this by determining how many half-lives have passed based on the remaining 25% of the original radioactive material. Since the half-life is 200 years, and with 25% remaining, it means two half-lives have passed (50% after first, 25% after second). Therefore, 2 x 200 = 400 years.

In beta decay, allowed transitions follow conservation laws for energy, momentum, and angular momentum, while forbidden transitions violate these laws. Allowed transitions result in the emission of beta particles with specific energies and momenta. Forbidden transitions are rare and involve higher-order interactions, resulting in beta particles with nonstandard energies or angular momenta.

nuclear fusion is when two atoms are forced together, fusing their nuclei into a heavier element and releasing a large amount of energy. Fission is when an atom is broken up into smaller atoms releasing a large amount of energy.