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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">elementos</topic></authority><related type="narrower"><topic>hierro</topic></related><related type="narrower"><topic>aluminio</topic></related><related type="narrower"><topic>antimonio</topic></related><related type="narrower"><topic>cadmio</topic></related><related type="narrower"><topic>cromo</topic></related><related type="narrower"><topic>cobre</topic></related><related type="narrower"><topic>oro</topic></related><related type="narrower"><topic>plomo</topic></related><related type="narrower"><topic>magnesio</topic></related><related type="narrower"><topic>manganeso</topic></related><related type="narrower"><topic>mercurio</topic></related><related type="narrower"><topic>níquel</topic></related><related type="narrower"><topic>plata</topic></related><related type="narrower"><topic>paladio</topic></related><related type="narrower"><topic>platino</topic></related><related type="narrower"><topic>titanio</topic></related><related type="narrower"><topic>tungsteno</topic></related><related type="narrower"><topic>uranio</topic></related><related type="narrower"><topic>vanadio</topic></related><related type="narrower"><topic>cinc</topic></related><related type="narrower"><topic>azufre</topic></related><related type="narrower"><topic>silicio</topic></related><related type="narrower"><topic>argón</topic></related><related type="narrower"><topic>estaño</topic></related><related type="narrower"><topic>selenio</topic></related><related type="narrower"><topic>neón</topic></related><related type="narrower"><topic>fósforo</topic></related><related type="narrower"><topic>potasio</topic></related><related type="narrower"><topic>arsénico</topic></related><related type="narrower"><topic>cobalto</topic></related><related type="narrower"><topic>elementos en traza</topic></related><related type="narrower"><topic>boron (traducció pendent)</topic></related><related type="narrower"><topic>calcio</topic></related><related type="narrower"><topic>cloro</topic></related><related type="narrower"><topic>carbon (traducció pendent)</topic></related><related type="narrower"><topic>sodium (traducció pendent)</topic></related><related type="narrower"><topic>nitrogen (traducció pendent)</topic></related><related type="narrower"><topic>strontium (traducció pendent)</topic></related><related type="narrower"><topic>bismuth (traducció pendent)</topic></related><related type="narrower"><topic>thorium (traducció pendent)</topic></related><related type="narrower"><topic>zirconium (traducció pendent)</topic></related><related type="narrower"><topic>molybdenum (traducció pendent)</topic></related><related type="narrower"><topic>iridium (traducció pendent)</topic></related><related type="narrower"><topic>rubidium (traducció pendent)</topic></related><related type="narrower"><topic>lithium (traducció pendent)</topic></related><related type="narrower"><topic>rare earth elements (traducció pendent)</topic></related><related type="narrower"><topic>iodine (traducció pendent)</topic></related><related type="narrower"><topic>germanium (traducció pendent)</topic></related><related type="narrower"><topic>niobium (traducció pendent)</topic></related><related type="narrower"><topic>californium (traducció pendent)</topic></related><related type="narrower"><topic>xenon (traducció pendent)</topic></related><related type="narrower"><topic>ytterbium (traducció pendent)</topic></related><related type="narrower"><topic>cerium (traducció pendent)</topic></related><related type="narrower"><topic>cesium (traducció pendent)</topic></related><related type="narrower"><topic>radon (traducció pendent)</topic></related><related type="narrower"><topic>bromine (traducció pendent)</topic></related><related type="narrower"><topic>gallium (traducció pendent)</topic></related><related type="narrower"><topic>neodymium (traducció pendent)</topic></related><related type="narrower"><topic>fluorine (traducció pendent)</topic></related><related type="narrower"><topic>seaborgium (traducció pendent)</topic></related><related type="narrower"><topic>radium (traducció pendent)</topic></related><related type="narrower"><topic>rhodium (traducció pendent)</topic></related><related type="other"><topic>tablas periódicas</topic></related><related type="broader"><topic>materiales por forma química</topic></related><variant type="other"><topic>elemento</topic></variant> <note xml:lang="es"><![CDATA[ Sustancias químicas simples compuestas de un solo tipo de átomo e incapaces de dividirse, cambiar o descomponerse por medios físicos o químicos normales. Son los constituyentes químicos básicos de los compuestos y, en último lugar, de toda la materia tangible del universo. ]]></note></mads>