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Cs (element) , caesium-137 (seez-iŭm) n. an artificial radioactive isotope of the metallic element caesium, used rarely in radiotherapy. Symbol: 137Cs. See also tel… Element , element (el-i-mĕnt) n. a substance, such as carbon, nitrogen, or oxygen, that cannot be decomposed into simpler substances. All the atoms of an eleme… Einsteinium , Einsteinium (revised)
Note: This article, originally published in 1998, was updated in 2006 for the eBook edition.
Overview
Einsteinium is a member o… Francium , Francium (revised)
Note: This article, originally published in 1998, was updated in 2006 for the eBook edition.
Overview
Francium is an alkali metal,… Transuranium Elements , transuranium elements, in chemistry, radioactive elements with atomic numbers greater than that of uranium (at. no. 92). All the transuranium element… Astatine , Astatine (revised)
Note: This article, originally published in 1998, was updated in 2006 for the eBook edition.
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Astatine is a member of the…
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transformation matrix