Chemical Reactions And Functions Of The Chemistry

1229 WordsMay 17, 20155 Pages
Nuclear chemistry is the study of the reactions and functions of the chemistry uses of the nucleus. The nucleus contains two types of components called the nucleons, which consist of the proton and neutron. The mass number of an atom is defined by the sum of the protons and neutrons; the atomic number of an atom is defined by the number of protons only. Atoms which have different mass numbers but have the same atomic number are referred as isotopes, for example carbon 12, 13, and 14.Nucleus with special numbers of the neutron and protons are referred as nuclides. Radio nuclides are usually unstable and it continuously emits particles as well as emits the electromagnetic radiation. Emission is the process of the unstable nucleus to undergo and become stable, this way it reduces the cost of the energy. For example the Uranium-238,which decays into an alpha particle (Helium nucleus) and a nucleon (Thorium-234). When the Uranium-238 decays it decomposed at the same time, this process can be also called as alpha-decayed. The equation for that is:238U92 -> 234Th90 + 4He2 + Gamma rays. There are three types of radioactive decay; alpha, beta and gamma radiation. The alpha radiation includes a stream of the Helium-4nuclei; beta radiation has higher speed electrons when emitting from unstable nucleus and normally has a negative charge(positron is the opposite side of the beta decay); gamma radiation has not much altering ability on the mass on either atomic or mass number thus it
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