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Date : 2005-09-01
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A List of Radioactive Elements ~ Keep in mind all elements can have radioactive isotopes If enough neutrons are added to an atom it becomes unstable and decays A good example of this is tritium a radioactive isotope of hydrogen naturally present at extremely low levels This table contains the elements that have no stable isotopes
List of Radioactive Elements Science Struck ~ A radioactive element is one with an unstable nucleus which radiates alpha beta or gamma radiation and gets converted to a stable element This article has a comprehensive list of radioactive elements and their properties
What Are Radioactive Elements Video Lesson Transcript ~ Radioactive Elements Everything around us is made of elements or different types of atoms While these atoms are way too small to see if you break an object or organism down enough ultimately
Radioactive Element an overview ScienceDirect Topics ~ When a radioactive element decays the daughter nucleus often has some residual energy and is left in an excited state The change to the ground state often involves the emission of a gammaray a photon with a discrete energy A gammaray source is a sealed stainless steel capsule containing a gammarayemitting material
The collection Radioactive Elements in the Periodic Table ~ These elements are radioactive They either have no stable naturally occurring isotope or else are entirely artificial all artificial elements have no stable isotopes Click any element below to see all the samples of that element
Radioactive element definition of radioactive element by ~ radioactive element an element subject to spontaneous degeneration of its nucleus accompanied by the emission of alpha particles beta particles or gamma rays All elements with atomic numbers greater than 83 are radioactive Naturally occurring radioactive elements include radium thorium and uranium
Characteristics of Radioactive Elements Sciencing ~ More than 60 elements have at least one isotope that is radioactive An isotope is a variant of a particular element whose nucleus has a different number of neutrons The radioactive elements can be broken down into three classes primordial existing before Earth was formed cosmogenic
Radionuclide Wikipedia ~ Radioactive nonprimordial but naturally occurring on Earth 61 347 Carbon14 and other isotopes generated by cosmic rays and daughters of radioactive primordial elements such as radium polonium etc 41 of these have a half life of greater than one hour Radioactive synthetic halflife ≥ 10 hour Includes most useful radiotracers 662 989
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