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nõrgalt rohekaskollane väga terava lõhnaga gaas, omadustelt halogeen, keemiline element järjenumbriga 9
a poisonous pale yellow gaseous element belonging to group 17 (formerly VIIB) of the periodic table (the halogens), halogeenide rühma kuuluv keemiline element, nõrgalt rohekaskollane väga terava lõhnaga gaas (F)
mikroelement