铽 tè （英語： Terbium），是一種 化學元素，其 化學符號 为 Tb， 原子序數 为65， 原子量 為 158.925 354 u，属于 镧系元素，也是 稀土元素 之一。 常溫下铽為銀白色 金屬，具有 延展性 、 韌性 且質地較軟。 就像其他重稀土元素一样，它在乾燥 空气 中相對穩定，但在潮濕環境下會迅速氧化。 铽拥有兩種晶型的 同素異形體， 轉化溫度 為1289°C。 铽在自然界中不以純元素態存在，而是以 化合物 的形式存在於許多 稀土礦物 中，包括 矽鈰石 、 矽鈹釔礦 、 獨居石 、 磷釔 …

Terbium is a chemical element; it has the symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas.

铽（Terbium）是镧系元素中的一员，原子序数为65，元素符号Tb，位于第六周期ⅢB族，单质为银白色金属，属稀土金属，有毒。 自然界只有一种稳定同位素，另有20种放射性同位素，六方晶格，溶于稀酸，与水反应较缓慢。

terbium (Tb), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Terbium is a moderately hard, silvery white metal that is stable in air when in pure form.

Terbium is a member of the lanthanide or "rare earth" group of elements. It is found in cerite, gadolinite, and other minerals along with other rare earths. It is recovered commercially from monazite in which it is present to the extent of 0.03%, from xenotime, and from euxenite, a complex oxide containing 1% or more of terbia.

Element Terbium (Tb), Group 19, Atomic Number 65, f-block, Mass 158.925. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Terbium (pronunciation: TER-bee-em) is a soft, silvery rare earth metal belonging to the Lanthanide series of elements represented by the symbol Tb [1, 2]. While the naturally occurring terbium contains one stable isotope, terbium-159, it has 36 radioactive isotopes out of which the most stable one is terbium-158 with a half-life of 180 years [3].

Terbium is a silver gray rare earth metal that is both malleable and ductile. Like other rare earth metals, it forms 3+ ions. Unlike most, it also forms 4+ ions relatively easily.

Terbium is a reactive metal and is electropositive in nature. It reacts slowly with cold water and quickly with hot water to forms terbium hydroxide. It burns and forms a mixed terbium (lll, IV) oxide. Terbium mostly exist in +3 oxidation state in the form of Tb 2 O 3 and +4 state as TbO 2 and TbF 4. It reacts with all halogens to form white ...

金属铽于 1843 年由 莫桑德尔 发现。 发现时被命名为氧化铒，直到 1878 年才正式命名铽（Terbium）。 直到 1905 年，才由瑞典科学家 乌贝茨 采用提纯工艺制出。 1843 年，瑞典科学家莫桑德尔在钇土中发现了铽元素（Terbium）。 在发现镧的同时，莫桑德尔分析了最初的钇土壤，第二年，他在一次学术会议上发布了针对钇土的研究报告，报告中指明钇土中包含三种元素的氧化物。 他用符号 Tb称其中一种为铽土，将其中一种命名为钇土，其符号为 Y。 铽，位于元素 …