| English | Spanish |
| Ad hoc Group of Experts on Pollution of the Ocean Originating on Land | Grupo Especial de Expertos sobre Contaminación Oceánica de Origen Continental |
| element of group Any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table; alkaline earth metals | elemento del grupo II (metales alcalino-terrosos) |
| element of group Group III consists of two subgroups: group IIIb and group IIIa. Group IIIa consists of scandium, yttrium, and lanthanium, which is generally considered with the lanthanoids, and actinium, which is classified with the actinoids. Group IIIb, the main group, comprises boron, aluminium, gallium, indium, and thallium | elemento del grupo III |
| element of group Group V consists of two subgroups: group Vb, the main group, and group Va. Group Va consists of vanadium, niobium, and tantalum, which are generally considered with the transition elements. The main group consists of nitrogen, phosphorus, arsenic, antimony, and bismuth | elemento del grupo V |
| element of group Any of the elements of the halogen family, consisting of fluorine, chlorine, bromine, iodine, and astatine | elemento del grupo VII |
| element of group alkaline earth metals | elemento del grupo II metales alcalino-terrosos |
| element of group 0 | elemento del grupo 0 |
| element of group 0 A group of monatomic gaseous elements forming group 18 (formerly group 0) of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn) | elemento del grupo 0 |
| element of group alkaline | elemento del grupo I alcalinos |
| element of group Group VI consists of two subgroups: group VIb, the main group, and group VIa. Group VIa consists of chromium, molybdenum, and tungsten. The main group consists of oxygen, sulphur, selenium, tellurium, and polonium | elemento del grupo VI |
| element of group Group IV consists of two subgroups: group IVb, main group, and group IVa. Group IVa consists of titanium, zirconium, and hafnium which are generally classified as transition metals. The main group consists of carbonium, silicium, germanium, tin, and lead. The main valency of the elements is IV, and the members of the group show a variation from nonmetallic to metallic behaviour in moving down the group. The reactivity of the elements increases down the group from carbon to lead. All react with oxygen on heating | elemento del grupo IV |
| element of group Any of the monovalent metals lithium, sodium, potassium, rubidium, caesium, and francium, belonging to group 1A of the periodic table. They are all very reactive and electropositive; alkaline | elemento del grupo I (alcalinos) |
| element of group III | elemento del grupo III |
| element of group IV | elemento del grupo IV |
| element of group V | elemento del grupo V |
| element of group VI | elemento del grupo VI |
| element of group VII | elemento del grupo VII |
| Expert Group on a Code of Practice for international transactions involving radioactive waste | Grupo de expertos sobre un código de conducta para las transacciones internacionales en las que intervienen residuos radiactivos |
| Group of 100 | Grupo de los Cien |
| Group of Experts on Long-Term Scientific Policy and Planning | Grupo de Expertos en Política Científica y Planeamiento a Largo Plazo |
| Group of experts on scientific aspects of marine pollution | Grupo mixto de expertos OCMI/FAO/UNESCO/OMM sobre los aspectos científicos de la contaminación del mar |
| Group of Experts on the Urban Environment | Grupo de expertos sobre el medio ambiente urbano |
| Joint Group of Experts on the Scientific Aspects of Marine Pollution | Grupo Mixto de Expertos sobre los Aspectos Científicos de la Protección del Medio Ambiente Marino |
| Oil Companies' International Study Group for Conservation of Clean Air and Water in Europe | Grupo de estudios internacional de las compañías petroleras para la salvaguardia del aire y el agua en Europa |
