radioactivily
Any radioactive element gives off subatomic particles, and these particles carry considerable energy. That is the definition of radioactivity. Examples of radioactive elements include uranium, plutonium, polonium, radium, and many more.
no, gamma isn't really decay as the radioactive ion doesn't emit any particles. In alpha and beta decay, different size particles are emitted as the nucleus decays but in gamma radiatio the ion gives off an ionising electromagnetic wave.
Gamma decay is one of three main types of radioactive decay. The other two are alpha and beta. In gamma decay, particles known as gamma rays are emitted. Gamma rays are actually high energy photons, the particle analogue of an electromagnetic wave. First of all, what is a radioactive decay? Well, we can start by saying that radioactive substances are highly unstable. As such, they strive to attain stability and in the process, undergo what is known as radioactive decay. You can think of a radioactive substance as being made up of highly unstable nuclei (made up of protons and neutrons). It is actually these nuclei that undergo radioactive decay. When each unstable nucleus decays, it loses a great amount of energy. This energy can come in the form of either an alpha particle (a Helium nucleus), a beta particle (an electron or positron), or a gamma particle (also known as a gamma ray). When a gamma particle is the one emitted, then the decay is known as a gamma decay. While alpha and beta decays occur because there are either too much neutrons compared to protons or too much protons compared to neutrons in the nucleus (this is why the nucleus is unstable), gamma decay simply occurs because the nucleus is in an excited or highly energetic state and hence has to 'relax' a bit. When this nucleus jumps down to a less energetic state, it releases the unwanted energy in the form of an electromagnetic wave which, as stated earlier, is the gamma ray. Among all three emitted particles in radioactive decay processes, gamma particles are the most penetrating. While alpha particles can be stopped by a sheet of paper and beta particles, by an aluminum plate, gamma particles can only be stopped by a thick dense material such as lead. Reminds you of Superman, does it? Because of the high penetrating capabilities of its emitted particles, gamma decay is considered the greatest threat among the three. Radioactive substances in laboratories are kept inside Lead-sealed cabinets. Some even have Lead-sealed lab rooms. This design is made specifically for the purpose of preventing gamma rays from passing through. Gamma rays that strike human cells can dislodge electrons from atoms comprising the cells because of the rays' ionizing property. This can leave the atom with a positive charge, causing it to interact with other atoms beside it and subsequently damaging the cell.
A stable element is an element that does not provide radioactivity. 1 kg of Gold will be 1 kg of gold even after 100.000 years. It is a stable element. An unstable element (like Uranium or Plutoneum) gives off radioactivity and actually form new elements like lead. 1 kg of pure Uranium will be 500 grams of Uranium and 500 grams of lead after 100.000 years. Times given and breakdown products are for illustrative purposes only. Degradation of unstable materials is not my science but I know the basics of it :-) Regards.
A mature fruit develops from an ovary after the fertilisation.
Radioactive material is a substance that gives off high-energy particles or rays, such as alpha, beta, or gamma radiation, due to its unstable atomic structure. These emissions can pose health risks if not handled properly.
It means the element is unstable and gives off dangerous particles.
Uranium is a mineral that can emit particles such as alpha, beta, and gamma radiation. These particles are released as the uranium undergoes radioactive decay.
Any radioactive element gives off subatomic particles, and these particles carry considerable energy. That is the definition of radioactivity. Examples of radioactive elements include uranium, plutonium, polonium, radium, and many more.
Free radiation I suppose. But gamma radiation, is charge free. As is UV, IR, ... ..
Yes. Each unstable element decays differently. Some emit gamma, some emit alpha, some emit beta, and some emit different combinations of those in different sequences as one unstable element gives rise to another unstable element.
no, gamma isn't really decay as the radioactive ion doesn't emit any particles. In alpha and beta decay, different size particles are emitted as the nucleus decays but in gamma radiatio the ion gives off an ionising electromagnetic wave.
When a nucleus comes apart, it gives off energy in the form of radiation, such as gamma rays, alpha particles, or beta particles. This release of energy is often accompanied by a decrease in the mass of the nucleus due to the conversion of mass into energy.
It's a semantic thing - by definition, if something gives out radiation, then it is radioactive. If an element gives off radiation, then it is a 'radioactive' element. If it does not give out radiation, then it is not 'radioactive'.
Gamma radiation is the emission of an photon from the nucleus with energy relative to the energy step that the nucleus takes in coming down from an excited state down to either an intermediate state or to the ground state.
Alpha particles have the greatest mass of the three forms of nuclear radiation. They consist of two protons and two neutrons bound together, which gives them a relatively high mass compared to beta particles and gamma rays.
Quasars.