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  • Biomass burning

    Biomass burning

    Non-methane volatile organic compounds (NMVOCs) are a set of organic compounds that are typically photochemically reactive in the atmosphere—marked by the exclusion of methane. NMVOCs include a lar

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  • Decay chain

    Decay chain

    In nuclear science a decay chain refers to the predictable series of radioactive disintegrations undergone by the nuclei of certain unstable chemical elements.Radioactive isotopes do not usually de

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  • Thorium Series

    Thorium Series

    In nuclear science a decay chain refers to the predictable series of radioactive disintegrations undergone by the nuclei of certain unstable chemical elements.Radioactive isotopes do not usually de

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  • Lattice system

    Lattice system

    This article needs additional citations for verification.Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Cr

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  • Trace radioisotope

    Trace radioisotope

    A trace radioisotope is a radioisotope that occurs naturally in trace amounts (i.e. extremely small). Generally speaking, trace radioisotopes have half-lives that are short in comparison with the a

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  • Alkali metal

    Alkali metal

    The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K),rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute group 1, which lie

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  • Zintl phase

    Zintl phase

    In chemistry, a Zintl phase is a product of a reaction between a group 1 (alkali metal) or group 2 (alkaline earth metal) and main group metal or metalloid (from groups 13, 14, 15, or 16). It is ch

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  • Other metal

    Other metal

    The metallic elements in the periodic table located between the transition metals to their left and the chemically weak nonmetallic metalloids to their right have received many names in the literat

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  • Boron group

    Boron group

    The boron group are the chemical elements in group 13 of the periodic table, consisting of boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl) and nihonium (Nh). This group lies in

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  • Carbon group

    Carbon group

    The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within the p-block.Carbon group (group 14)Hydroge

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