Chemical reactions of the elementsReaction of yttrium with airYttrium metal tarnishes slowly in air and burns readily to form yttrium (III) oxide, Y2O3. 4Y + 3O2 → 2Y2O3 Reaction of yttrium with waterWhen finely divided, or heated, yttrium metal dissolves in water to form solutions containing the aquated Y(III) ion together with hydrogen gas, H2. 2Y(s) + 6H2O(aq) → 2Y3+(aq) + 6OH-(aq) + 3H2(g) Reaction of yttrium with the halogensYttrium is very reactive towards the halogens fluorine, F2, chlorine, Cl2 bromine, Br2, and iodine, I2, and burns to form the trihalides yttrium(III) fluoride, YF3 , yttrium(III) chloride, YCl3, yttrium(III) bromide, YBr3, and yttrium(III) iodide, YI3 respectively. 2Y(s) + 3F2(g) → 2YF3(s) 2Y(s) + 3Cl2(g) → 2YCl3(s) 2Y(s) + 3Br2(g) → 2YBr3(s) 2Y(s) + 3I2(g) → 2YI3(s) Reaction of yttrium with acidsYttrium metal dissolves readily in dilute hydrochloric acid to form solutions containing the aquated Y(III) ion together with hydrogen gas, H2. 2Y(s) + 6HCl(aq) → 2Y3+(aq) + 6Cl-(aq) + 3H2(g) Reaction of yttrium with basesWebElements ShopWebElements now has an online shop at which you can buy periodic table posters, mugs, T-shirts, games, molecular models, and more.
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