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- Symbol_(chemistry) abstract "A chemical symbol is a 1-, 2-, or 3-letter internationally agreed code for a chemical element, usually derived from the name of the element, often in Latin. Only the first letter is capitalized. For example, "He" is the symbol for helium (English name, not known in ancient Roman times), "Pb" for lead (plumbum in Latin), "W" for tungsten (wolfram in German, not known in Roman times). Temporary symbols assigned to newly or not-yet synthesized elements use 3-letter symbols based on their atomic numbers. For example, "Uno" was the temporary symbol for hassium which had the temporary name of unniloctium and "Uuo" is the symbol for ununoctium (temporary name) with the atomic mass 118.Chemical symbols may be modified by the use of prepended superscripts or subscripts to specify a particular isotope of an atom. Additionally, appended superscripts may be used to indicate the ionization or oxidation state of an element. They are widely used in chemistry and they have been officially chosen by the International Union of Pure and Applied Chemistry. There are also some historical symbols that are currently not official any more. Attached subscripts or superscripts specifying a nucleotide or molecule have the following meanings and positions: The nucleon number (mass number) is shown in the left superscript position (e.g., 14N) The proton number (atomic number) may be indicated in the left subscript position (e.g., 64Gd) If necessary, a state of ionization or an excited state may be indicated in the right superscript position (e.g., state of ionization Ca2+). In astronomy, non-ionised atomic hydrogen is often known as "H I", and ionised hydrogen as "H II". The number of atoms of an element in a molecule or chemical compound is shown in the right subscript position (e.g., N2 or Fe2O3) A radical is indicated by a dot on the right side (e.g., Cl· for a chloride radical)In Chinese each chemical element has an ideograph, usually created for the purpose, as its symbol (see Chemical elements in East Asian languages).A list of current, dated, as well as proposed and historical signs and symbols is included here with its signification. Also given is each element's atomic number, atomic weight or the atomic mass of the most stable isotope, group and period numbers on the periodic table, and etymology of the symbol.".
- Symbol_(chemistry) thumbnail Atomic_Symbol.jpg?width=300.
- Symbol_(chemistry) wikiPageExternalLink NOME.
- Symbol_(chemistry) wikiPageExternalLink berzelius.html.
- Symbol_(chemistry) wikiPageExternalLink atomic-weights_revised05.html.
- Symbol_(chemistry) wikiPageExternalLink 7508x1107.html.
- Symbol_(chemistry) wikiPageExternalLink history.pdf.
- Symbol_(chemistry) wikiPageExternalLink elements.
- Symbol_(chemistry) wikiPageExternalLink www.webelements.com.
- Symbol_(chemistry) wikiPageID "63243".
- Symbol_(chemistry) wikiPageRevisionID "602854767".
- Symbol_(chemistry) caption "Legend for category color".
- Symbol_(chemistry) child "no".
- Symbol_(chemistry) theme "category".
- Symbol_(chemistry) unknown "yes".
- Symbol_(chemistry) subject Category:Lists_of_chemical_elements.
- Symbol_(chemistry) subject Category:Lists_of_symbols.
- Symbol_(chemistry) subject Category:Symbols.
- Symbol_(chemistry) comment "A chemical symbol is a 1-, 2-, or 3-letter internationally agreed code for a chemical element, usually derived from the name of the element, often in Latin. Only the first letter is capitalized. For example, "He" is the symbol for helium (English name, not known in ancient Roman times), "Pb" for lead (plumbum in Latin), "W" for tungsten (wolfram in German, not known in Roman times).".
- Symbol_(chemistry) label "Pierwiastki chemiczne według symboli".
- Symbol_(chemistry) label "Symbol (chemistry)".
- Symbol_(chemistry) label "元素符号列表".
- Symbol_(chemistry) sameAs Anexo:Elementos_químicos_por_símbolo.
- Symbol_(chemistry) sameAs 기호_(화학).
- Symbol_(chemistry) sameAs Pierwiastki_chemiczne_według_symboli.
- Symbol_(chemistry) sameAs m.019zxh.
- Symbol_(chemistry) sameAs Q193084.
- Symbol_(chemistry) sameAs Q193084.
- Symbol_(chemistry) wasDerivedFrom Symbol_(chemistry)?oldid=602854767.
- Symbol_(chemistry) depiction Atomic_Symbol.jpg.
- Symbol_(chemistry) isPrimaryTopicOf Symbol_(chemistry).
