Difference between revisions of "Isotope"

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'''Isotopes''' are forms of [[chemical elements]] which have the same [[atomic number]] but a different [[atomic mass]], or, the same number of [[proton]]s in the [[nucleus|atomic nucleus]], but different numbers of [[neutron]]s.
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For example, carbon-12 (<sup>12</sup>C), carbon-13 (<sup>13</sup>C) and carbon-14 (<sup>14</sup>C) are three isotopes of carbon, each containing six protons and also containing six, seven or eight neutrons, respectively.  While carbon-12 is the most common form, <sup>13</sup>C is magnetically active, and it is therefore useful for [[magnetic resonance imaging]] (MRI) and [[nuclear magnetic resonance]] spectroscopy.  Carbon-14 is radioactive, and is therefore useful for radiation tracing and age determination.
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'''Isotopes''' are forms of [[chemical elements]] which have the same [[atomic number]] but a different [[atomic mass]], or, the same number of [[proton]]s in the [[nucleus|atomic nucleus]], but different numbers of [[neutron]]s.
  
[[Category:CZ Live]]
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For example, carbon-12 (<sup>12</sup>C), carbon-13 (<sup>13</sup>C) and carbon-14 (<sup>14</sup>C) are three isotopes of carbon, each containing six protons and also containing six, seven or eight neutrons, respectively.  While carbon-12 is the most common form, <sup>13</sup>C is magnetically active, and it is therefore useful for [[magnetic resonance imaging]] (MRI) and [[nuclear magnetic resonance]] spectroscopy.  Carbon-14 is radioactive, and is therefore useful for radiation tracing and age determination.
[[Category:Chemistry Workgroup]]
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[[Category:Physics Workgroup]]
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Revision as of 02:40, 4 November 2007

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Isotopes are forms of chemical elements which have the same atomic number but a different atomic mass, or, the same number of protons in the atomic nucleus, but different numbers of neutrons.

For example, carbon-12 (12C), carbon-13 (13C) and carbon-14 (14C) are three isotopes of carbon, each containing six protons and also containing six, seven or eight neutrons, respectively. While carbon-12 is the most common form, 13C is magnetically active, and it is therefore useful for magnetic resonance imaging (MRI) and nuclear magnetic resonance spectroscopy. Carbon-14 is radioactive, and is therefore useful for radiation tracing and age determination.