What is the abbreviation of the word Y Y in the post?

Y (element symbol) generally refers to yttrium (chemical element).

Yttrium is a gray-black metal, with the chemical symbol Y, and it is the first rare earth metal element to be discovered, which is malleable. It can react with hot water and is easily soluble in dilute acid. Special glasses and alloys can be made.

The purity of industrially produced yttrium is generally not less than, and its main impurities are other rare earth elements, content: calcium; Iron; Copper; Tantalum or tungsten 1%. Yttrium of a purity of not less or purer can also be produced. The main impurities in high-purity yttrium are still rare earth elements.

The metal itself was developed in 1828 by Friedrich W Hler by the reaction of yttrium chloride and potassium. However, there are other elements hidden in yttrium.

Y is the English alphabet! The twenty-fifth letter in lowercase is Y.

English (English: English) is a West Germanic language that was first spoken in medieval England and is the most widely spoken language in the world due to its vast colonies. The Anglo tribes, the ancestors of the British, were one of the Germanic tribes that later migrated to the island region of Great Britain, known as England.

Both names come from Anglia on the Baltic Peninsula.

The language is closely related to Frisian and Lower Saxon, and its vocabulary is influenced by other Germanic languages, especially Norse (North Germanic), and is largely written in Latin and French.

Main article: Old English.

The earliest form of English is known as Old English or Anglo-Saxon (550-1066 AD). Old English was developed from a group of North Sea Germanic dialects that were originally spoken by Germanic tribes known as Antelope, Saxon, and Jute in Frisia, Lower Saxony, Jutland, and the southern coastal regions of Sweden.

From the 5th century CE, the Anglo-Saxons settled in England with a Roman economy and administrative collapse. By the 7th century, the Germanic languages of the Anglo-Saxons had become dominant in England, replacing the languages of Roman Britain (43-409 CE): Gubriton, a Celtic and Latin, was brought to England for Roman occupation.

y is the meaning of year, which is the abbreviation of year.

Vocabulary analysis: basic vocabulary of year.

English [j (r)] American [j r].

n.Year; Annual; Age; Academic year.

the thief was put into prison for one year.

The thief was imprisoned for a year.

Enter a new year.

feel one'S Year feels old.

Vocabulary usage.

The basic meaning of year is "year", which refers to the time it takes for the earth to make one revolution around the sun, usually 365 days, sometimes 366 days, and can also refer to the "time of year" related to something. Year can also refer to a person's "age, year", and can also refer to "school year, year".

year means "....years", the word old is usually added after it, in which case there must be a hyphen before and after year, and the plural form cannot be used.

years is generally not preceded by many years when it means "several years". If you mean decades, or even longer, you can't use years.

Y meaning: 1. Y (English letter).

Y is the twenty-fifth letter of the English alphabet, lowercase y.

2. Y (chemical element).

Yttrium, chemical symbol y. It is the first rare earth metal element to be discovered and is a gray-black metal that is malleable. It can react with hot water and is easily soluble in dilute acid. Special glasses and alloys can be made.

3. Y (mathematical meaning).

y, in mathematics: generally, y is used to represent an unknown number, which can go directly into the original equation. As with x and z, it can be expressed as a number.

y 1.The twenty-fifth letter of the English alphabet, lowercase y2Murder game cop verifies someone at night, "y" for short.

3.The master of the love field, the woman is abbreviated: y

4.Element Symbol: y

English name: yttrium

English pronunciation] :wai].

Chinese name: yttrium.

Young's modulus (elasticity)]: GPA

Enthalpy of atomization]: 418 kJ mol @25 heat capacity]: j (mol· k).

Conductivity]:

Thermal conductivity]: w (m·k).

Heat of Fusion]: kilojoules mol).

Heat of vaporization]: kilojoules mol).

The amount of an element in the universe (ppm).

Relative atomic Mass]:

Common valence]: 3

Electronegativity]: peripheral electronic configuration]: 4d11 5s2

Extranuclear electron configuration]: 2,8,18,9,2

Isotope lead transport and radiation]: y-86 [ y-87 [ y-88 [ y-89 y-90 [ y-91 [ y-92 [ y-93[

Electron affinity and energy]: 39 kJ·mol-1

First ionization energy]: 616 kJ·mol-1 Second ionization energy]: 1181 kj·mol-1 [third ionization energy]: 1980 kj·mol-1 elemental density]: g cm3

Elemental melting point]:

Elemental boiling point]:

Atomic Radius]: Angstroms.

Ionic radius]: Angstroms.

Covalent radius]: Angstroms.

Common compounds]: Y2O3 YCl3 YF3 Y(NO3) Y2(SO4).

Discoverer: Gadolin.

Location: Finland.

y refers to yttrium.

Yttrium is a rare earth element. Rare earth elements refer to scandium, yttrium, and all lanthanides. Due to their scarcity in the earth's crust, their oxides are similar in nature to earth-like elements such as calcium oxide, hence the name.

Rare earth elements are difficult to discover, isolate, and analyze due to their scattered distribution and often chaotic mineralization, as well as their similarity to each other.

Yttrium Uses:

Yttrium is widely used in industry, it can be used as a yttrium phosphor to give a red color to TV screens, as well as in filters for certain rays, superconductors, superalloys and special glasses. Yttrium is resistant to high temperature and corrosion, and can be used as a cladding material for nuclear fuel.

Yttrium and a variety of ammonia carboxyl compounds can form stable chelates; Yttrium aluminum garnet containing neodymium is an excellent laser material, yttrium iron garnet is an excellent laser material, and yttrium iron garnet and yttrium aluminum garnet are new magnetic materials.

Y is the English alphabet! The twenty-fifth letter in lowercase is Y.

I'm also in Phuket, and now I hear a silver say, "I didn't expect you to be a special person" and asked, what does this mean?

Korean idol group MBLAQ**.