Resultado da Busca
A radioatividade é uma forma de energia nuclear, usada na medicina ( radioterapia ), e consiste no fato de alguns átomos como os do urânio, rádio e tório serem “instáveis”, perdendo constantemente partículas alfa, beta e gama ( raios-X ).
Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay.
Radiation, in general, exists throughout nature, such as in light and sound. In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes:
9 de mai. de 2024 · Radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei.
Radioactivity is a measure of the total, local rate of radionuclides decaying per unit time and is dependent upon the total number of atoms, decay constants, and all decay branching pathways for each radionuclide present.
Radioatividade é geralmente usado em ciências da vida para medições diretas e altamente sensíveis de fenômenos biológicos e para visualizar a localização de biomoléculas marcadas isotopicamente com um radioisótopo .
Radioactivity is generally used in life sciences for highly sensitive and direct measurements of biological phenomena, and for visualizing the location of biomolecules radiolabelled with a radioisotope.
