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Periodic Table of the Elements: Ytterbium
(Encyclopedia)Periodic Table of the Elements: Ytterbium ...Periodic Table of the Elements: Yttrium
(Encyclopedia)Periodic Table of the Elements: Yttrium ...Periodic Table of the Elements: Zinc
(Encyclopedia)Periodic Table of the Elements: Zinc ...Periodic Table of the Elements: Zirconium
(Encyclopedia)Periodic Table of the Elements: Zirconium ...Periodic Table of the Elements: Thallium
(Encyclopedia)Periodic Table of the Elements: Thallium ...number-average molecular weight
(Encyclopedia)number-average molecular weight: see molecular weight. ...element
(Encyclopedia)CE5 element, in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means o...Atomic Energy Agency, International
(Encyclopedia)Atomic Energy Agency, International (IAEA), independent intergovernmental organization established in 1957 under the aegis of the United Nations to promote safe, secure, and peaceful uses of atomic e...International Atomic Energy Agency
(Encyclopedia)International Atomic Energy Agency: see Atomic Energy Agency, International. ...European Atomic Energy Community
(Encyclopedia)European Atomic Energy Community (Euratom or EAEC), economic organization that came into being as the 3d treaty organization of what has become the European Union; established by the Treaty of Rome (1...Browse by Subject
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