Isotopos

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COLEGIO SAN BARTOLOME LA MERCED
NINTH GRADE “E”
SEBASTIAN LOZADA VELASQUEZ
DECEMBER 10/ 2010
The Isotopes
The isotopes are different types of atoms of the same chemical element each havingdifferent number of neutrons. The isotopes differ in mass number. But never in atomic number. Some isotopes can be radioactive, when they are radioactive give the name of radioisotopes. For example, 14 Cis a radioactive form of carbon while 12 C and 13 C are stable isotopes. Around the world exist like 399 isotopes elements, and 257 are considered ``stable``. A neutral atom has the same number ofelectrons as protons. Thus, different isotopes of a given element all have the same number of protons and electrons and share a similar electronic structure
The Isotopes have many functions that help thesociety in different forms, as we know the isotopes can find in there are about 339 naturally occurring nuclides on Earth, one of the most important elements that have isotopes is the carbon. Theretree types of carbon: 14 carbon, 12 carbon and 13 carbon. For biogenic substances, significant variations of isotopes of C, N and O can occur. Analysis of such variations has a wide range ofapplications, such as the detection of adulteration of food products (this is important because in the world died many people for the adulteration of product food if we use more continues this method we canevit the die of some persons). The identification of certain meteorites as having originated on Mars is based in part upon the isotopic signature of trace gases contained in them. Other use of theisotopes is that normally, atoms of a given element are indistinguishable from each other. However, by using isotopes of different masses, they can be distinguished by mass spectrometry or infraredspectroscopy. We can also with the stable isotopes quantify the proteins of an aliment and if you use the radioactive isotopes it can be detected by the radiation that they emit, and one of the other...
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