What does AU stand for in metal, and what exactly is Au

Element symbol: au English name: gold Chinese name: 金.

Modulus of bulk elasticity.

gpa 220

Enthalpy of atomization: kj mol @25 364

Heat capacity: j (mol· k).

Thermal conductivity. w/（m·k）318

Electrical conductivity: 10-6 (cm·

Heat of melting: (kJ mol).

Heat of vaporization: (kJ mol).

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

Relative atomic mass.

Common valences.

1,+3 Electronegativity:

Peripheral Electron Configuration: 5d10 6s1 Extranuclear Electron Configuration: 2,8,18,32,18,1

Isotope. and radiation: au-194 [ au-195 [ au-196 [ au-197 au-198 [ au-199[

Electron affinity and energy: kj·mol-1

First ionization energy: 890 kJ·mol-1 Second ionization energy: 1980 kJ·mol-1 Third ionization energy: 0 kj·mol-1

Elemental density: g cm3 Elemental melting point: Elemental boiling point:

Atomic Radius: Angstroms Ionic Radius: Angstroms Covalent Radius: Angstroms.

Common compound: HAUCL4

Origin of the name: Anglo-Saxon: geolo (yellow); The elemental symbol comes from the Latin "aurum" (Dawn of Radiance.

Elemental Description: Bright yellow metallic with softness and ductility.

Elemental use: Extremely malleable, used in electrical equipment, jewelry, and coins. Gold is infrared.

excellent reflectors, so in skyscrapers.

A layer of gold leaf on the glass surface can reduce the heat generated by daylight in the building.

AU is the elemental symbol of the chemical element gold.

Element symbol: AU English name: gold Chinese name: gold volumetric modulus: GPA 220

Enthalpy of atomization: kj mol @25 364 heat capacity: j (mol· k).

Thermal conductivity: w (m·k) 318

Electrical conductivity: 10-6 (cm·

Heat of melting: (kJ mol).

Heat of vaporization: (kJ mol).

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

Relative atomic Mass: Common Valency: +1,+3 Electronegativity:

Peripheral Electron Configuration: 5d10 6s1 Extranuclear Electron Configuration: 2,8,18,32,18,1

Isotopes and radiation: au-194 [ au-195 [ au-196 [ au-197 au-198 [ au-199[

Au is a gold element, atomic number 79, relative atomic mass, yellow-red, soft texture.

Introduction to the AU element:

1.Element name: gold

2.Symbol: au

3.Atomic number: 79

4.Number of nuclear charges: 79

5.Number of electrons outside the nucleus: 79

6.Common oxidation numbers: +1, +3

7.Its chemical properties are inactive and can only be dissolved in highly corrosive substances such as aqua regia.

8.Period: 6

9.Family: IB

10.Electron layer: 5d106s1

11.Extranuclear electron configuration: 2 8 18 32 18 112Common valence: +1 +3

13.Electronegativity.

Gold on the surface refers to "gold plating", that is, a thin layer of gold is plated on the surface of the object, and the inside of the object is made of other materials, without gold.

Au is the elemental symbol of the metallic element gold.

The elemental nature of gold (free nucleus excitation resists the deviant state.

Form) is commonly known as **, which is a kind of ***, which has been used as currency, store of value and jewelry. In nature, gold occurs in elemental form in nuggets or grains of gold in rock-modified rocks, underground veins and alluvium. Gold is solid at room temperature, with high density, softness, brightness, corrosion resistance, and is the most malleable metal, second only to platinum in ductility. Lead land.

"AU9999" is the expression of the ** purity stipulated by the state. **Accessories must be stamped with this type of mark. "Au" is the symbol of the chemical element **.

Indicates that this metal ornament is made of **. 9999 pure gold, also known as pure pure gold, is the minimum value of the content of "purity thousandths".

The numerical identification of gold represents its purity, 999 is pure gold, and the purity of ** is 999 thousandths; 9999 is 10,000 pure gold, representing the purity of ** is 90 per 10,000, a difference of 9/10,000. The difference between 999 and 9999 is mainly the difference in purity, 999 is the gold content, and 9999 is the gold content. However, the above two are the same.

Hello. If you see the word "gold on the surface" on jewelry, you can interpret it as "gold plating". Gold plating, a decorative process.

It refers to the coating of a thin layer of gold on the surface of the object. Jewelry (utensils) are made of other materials and do not contain gold. Only the surface has gold.

AU is a grip of messy gold.

Gold is the elemental form of the chemical element gold (chemical element symbol AU), which is a soft, golden-yellow, corrosion-resistant ***. It is one of the rare, precious and valuable metals. In the world, ** is generally measured in ounces.

In ancient China, "beam" was a very important metal. It is not only a special currency for reserves and investments, but also an important material for the jewelry, electronics, modern communications, aerospace and other sectors.

The chemical symbol is AU, and the financial English is XAU or. The name AU is a story of Aurora, the goddess of the dawn in Roman mythology, which means shining dawn.

Since 2015, the international gold price has soared, and the gold price in the New York market has risen from $1,200 per ounce to $1,300 in less than a month. Statistics show that the New York market has ******** since 2015. [1]

Physical. 1. Color:

When Huang Xianjin melts, the steam released is green; Its gold dust is usually brown in color during the smelting process; If you cast it into a thin sheet, it can transmit green light.

**It is a simple form of the chemical element gold, the symbol of the chemical element AU, which is a soft, golden-yellow, corrosion-resistant ***. Gold is one of the rarest, more precious and most valued metals.

Internationally, the first is generally in ounces, and in ancient China, "two" was used as the unit, which is a very important genus of golden acres. It is not only a special currency used for reserves and investment, but also an important material for the jewelry industry, electronics industry, modern communications, aerospace industry and other departments.

The chemical symbol is AU, and the financial English is XAU or the name comes from a story of Aurora, the goddess of the dawn in Roman mythology, which means shining dawn.