Holmium is a chemical element; it has symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series. It is a relatively soft, silvery, fairly corrosion-resistant and malleable metal.

钬（huǒ），是一种 镧系 金属元素，化学符号为Ho，原子序数67， 原子量 164.9， 元素 名来源于发现者的出生地。 钬熔点1474℃，沸点2600℃，相对密度8.79g/cm 3。 室温下钬为六方密堆积晶形结构；低于-253℃时有铁磁性。 [2] 钬是一种比较柔软的稀土金属，有较好的延展性，在室温下的干燥空气中比较稳定，但是在潮湿的空气或较高温度下会被迅速氧化。 金属钬具有不同寻常的磁性，在 独居石 、 硅铍钇矿 等矿物中都含有钬。 [3] 钬激光具有很好的切割能力，在医疗领域 …

Holmium, chemical element, a rare-earth metal of the lanthanide series of the periodic table. Holmium is a moderately hard, silvery white metal that is relatively stable in air. It is a very strong paramagnet above 133 K (−140 °C, or −220 °F).

Element Holmium (Ho), Group 19, Atomic Number 67, f-block, Mass 164.930. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Holmium is a bright, soft, silvery-white, rare earth metal that is both ductile and malleable. It does not react in dry air at normal temperatures, but rapidly oxidizes to a yellow oxide (Ho 2 O 3) in moist air or when heated. When present in compounds, holmium exists …

Holmium. Holmium is a chemical element with symbol Ho and atomic number 67. Classified as a lanthanide, Holmium is a solid at room temperature.

2021年10月14日 · Holmium atom is a lanthanoid atom and a f-block element atom. holmium is a mineral. An element of the rare earth family of metals. It has the atomic symbol Ho, atomic number 67, and atomic weight 164.93. See also: Holmium hydride (HoH3) (annotation moved to) ... View More ... holmium. InChI=1S/Ho. KJZYNXUDTRRSPN-UHFFFAOYSA-N. [Ho] Ho.

Holmium is a bright silver lustrous metal. It is soft and corrosion resistant element. At standard temperature and pressure, it is stable in dry air. It oxidizes quickly in moist air and high temperature to form yellowish oxide.

Holmium is one of the lanthanoids, commonly known as rare earth elements. However the term rare earth is a misnomer because some are not actually rare: holmium is twenty times more abundant than silver. A bright, soft, silvery metal, holmium is slowly attacked by oxygen and water, and dissolves in acids.

Holmium (pronunciation: HOHL-mee-em) is a silvery metal belonging to the group of lanthanides and represented by the chemical symbol Ho [1, 2]. It has one stable naturally occurring isotope, 165 Ho, with a natural abundance of 100% while its most stable radioisotope, 163 Ho has a half-life period of 4,570 years [3].