Lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dys

Cerium pronunciation: shì

Lanthanum reading: lán

Praseodymium is pronounced: pǔ

Neodymium reading: nǚ

Extended character pronunciation: 钪 (kàng) 钇 (yǐ) 钷 (pǒ) 钐 (shān) 铕 (yǒu) 镝 (dī) 钬 (huǒ) 雒 (ěr) 铥 (diū) 镱 (yì) 镥 (lǔ).

Cerium. shì

A metallic element that is an excellent reducing agent and can be used to make alloys.

Lanthanum. lán is a metallic element, a rare earth metal, which can be used to make alloys and catalysts.

Praseodymium. pǔ A metallic element, a rare earth metal, used to make special alloys and special glass, and can also be used as a pigment for pottery.

Neodymium. nǚ A metallic element, yellowish in color, rare earth metal.

Pronunciation: [pǔ nǚ].

Praseodymium is a metallic element that is a rare earth metal. The name of the element ** is in Greek, and the original meaning is:"Green"。The crystal structure is that the unit cell is a hexagonal unit cell.

Praseodymium is more resistant to corrosion in air than lanthanum, cerium, neodymium, and europium, but exposure to air produces a layer of fragile green oxide, and pure praseodymium must be preserved in mineral oil or sealed plastic. One of the uses of praseodymium is for petroleum catalytic cracking. The petroleum cracking catalyst was prepared in the form of praseodymium-neodymium enrichment by adding Y-type zeolite molecular sieve, which could improve the activity, selectivity and stability of the catalyst.

Praseodymium, like other rare earth elements, has chronic low toxicity and is not biologically essential.

Neodymium is a metallic element, yellowish in color, rare earth metal. It is a silvery-white metal with a melting point of 1024 °C and a density of gram cm. Neodymium is one of the most reactive rare earth metals, which can rapidly darken in the air and form oxides; Reacts slowly in cold water and quickly in hot water.

Neodymium-doped yttrium aluminum garnet and neodymium glass can be used instead of ruby as laser materials, and neodymium and praseodymium glass can be used as goggles. Neodymium (ND): With the birth of praseodymium, neodymium also came into being, and the arrival of neodymium has enlivened the rare earth field, playing an important role in the rare earth field and influencing the rare earth market.

Praseodymium neodymium oxide, molecular formula (PRND) XOY, the appearance of the character is gray or tan powder, easy to absorb water and inhale, must be stored in a dry place, can not be placed in the open air. It is used for deep processing and glass, ceramics, magnetic materials, etc. Praseodymium-neodymium oxide gray powder, is the raw material of metal praseodymium-neodymium (i.e., praseodymium-neodymium alloy), praseodymium-neodymium oxide is melted at high temperature to form metal praseodymium-neodymium.

Praseodymium-neodymium alloy is the main raw material for the production of high-performance NdFeB permanent magnet materials. It accounts for about 27% of the cost of NdFeB permanent magnet materials. Praseodymium neodymium oxide is used for deep processing and glass, ceramics, magnetic materials, etc.

Dysprosium ferroalloy is mainly used in NdFeB permanent magnet materials, manufacturing super magnetostrictive alloys, optical and magnetic recording materials, nuclear fuel diluents, etc.

Erbium, erbium three times.

Europium you three times.

Neodymium NV three tones.

Praseodymium, pu three tones.

Yttrium, yi four sounds.

Dysprosium, di two tones.

Gadolinium ga two tones.

Lanthanum lán is a metallic element, a rare earth metal, which can be used as an alloy or catalyst.

Praseodymium pǔ is a metallic element, a rare earth metal, used to make special alloys and special glass, and can also be used as a pigment for pottery.

Neodymium nǚ A metallic element, yellowish in color, rare earth metal.

Praseodymium-neodymium is a rare earth element with the chemical symbol pr-nd. Praseodymium neodymium is a silvery-white metal with good ductility and conductive potato. It is very rare in nature and is mainly found in rare earth ores.

Praseodymium neodymium has a wide range of applications in industry, especially in magnetic and optical materials.

Praseodymium is pronounced "pǔ nǚ", where "pǔ" and "nǚ" are the first and third tones, respectively. In Hanyu Pinyin, "pǔ" is pronounced as "poo", similar to the pronunciation of the English word "pool". Whereas, "nǚ" is pronounced as "nü", similar to the pronunciation of the English word "new".

Praseodymium neodymium is an important rare earth element, which has important applications in modern science and industry. For example, praseodymium-neodymium alloys can be used to make high-strength magnets for devices such as electric vehicles, wind turbines, and computer hard drives. In addition, praseodymium neodymium can also be used to make optical materials such as optical glass and lasers.

In conclusion, praseodymium neodymium is an important rare earth element with a wide range of applications. It is pronounced "pǔ nǚ" and is pronounced "poo nü".