radioactive decay calculator
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radioactive decay calculator
in 1896, french scientist henri becquerel first discovered radioactivity in phosphorescent materials. in 1898, marie curie discovered pitch mixture, a uranium ore that was more radioactive than uranium itself. the term radioactivity was coined by marie curie. during radioactive decay, unstable nuclei lose energy by emitting radiation in the form of particles or electromagnetic waves.
the basic laws of radioactive decay are based on the fact that the transformation from the decay of a parent nucleus to a daughter nucleus is a purely statistical process. the probability of decay (decay) is equal to the fundamental properties of the nucleus and time.
the si unit for radioactivity is beq (bq), which is defined as the decay rate per second (dps). another curie (ci) can be defined as the attenuation rate of 3.7×1010dps.
half-life can be defined as the period of time during which half of the radioactivity disappears (half of the nuclei disintegrate).
atoms that participate in radioactive decay are called isotopes.
day 0 activity is the radioactivity entry for the base date.
there are three common types of radioactive decay: alpha, beta, and gamma
the reason is that there are too many protons when the nucleus decays, resulting in excessive repulsive force. when beta decay occurs, the ratio of neutrons to protons is too large, causing the nucleus to become unstable. in beta decay, neutrons become protons and electrons. then electrons are emitted. there are also cases where the ratio of neutrons to protons is too small when emitting positrons. the final type of beta decay, called electron capture, also occurs when the ratio of protons to neutrons in the nucleus is too small. gamma decay occurs because the energy of the nucleus is too high. the nucleus drops to a lower energy state, emitting high-energy photons called gamma particles in the process
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