What is the pronunciation of the metal element Cr ?

Metallic elements. cr, Chinese name: chromium. Pronunciation: gè. Chromium is a silvery-white lustrous metal, and pure chromium is malleable.

Chromium with impurities is hard and brittle. Density. Soluble in strong alkaline solution. Chromium is highly resistant to corrosion and oxidizes slowly in air, even in a red-hot state. Insoluble in water. Plating on metal can play a protective role.

Chromium, chemical symbol CR, is a steel-gray metal. The name of the element comes from the Greek word for "color", because chromium compounds have color. In 1797 French chemist Walkland in Siberia.

A new mineral was discovered in red lead ore, which was obtained by carbon reduction the following year. The content of chromium in the earth's crust is the 17th. There is no free state of chromium in nature, mainly in chromite. in the periodic table.

Belongs to the B family.

The atomic number of chromium.

Metal element cr, Chinese name: chromium.

Pronunciation: In the dictionary, chromium has only one pronunciation: gè.

But in real life, especially in factories, it is luò that has been passed down from generation to generation. The reason for this phenomenon is that it is said to be used to distinguish it from cadmium (gé) in chemical elements. But you can't find this pronunciation in the dictionary, so this pronunciation will definitely fade out of our lives in the future.

However, as a sign of respect for the older generation of engineers, it is important to remember the word luò so that you can communicate with your predecessors in production. It is also necessary to memorize the gè pronunciation of this character in order to communicate with the next generation and to be in line with the standard.

3.Chromium element symbol CR, silvery-white metal, belongs to group B in the periodic table, atomic number of chromium 24, atomic weight, body-centered cubic crystal, common valencies of +3, +6 and +2. The oxidation number is the year of the French chemist Warkeland (a new element was discovered in the Siberian red lead ore (chromium-lead ore), and the following year it was reduced with carbon to obtain the metal chromium.

Because chromium is able to produce beautiful multi-colored compounds, it is named chromium according to the Greek word chroma.

The pronunciation of chromium is: gè (initial g, vowel e, four tones), gé (initial g, vowel e, two tones), luò (initial l, vowel uo, four tones).

Basic Meanings: 1) Chemical elements.

It is ranked in the fourth period IVB group and has atomic number.

for long hooks. 3) Haircuts and shaving.

Explanation of compound words: 1. Chromium steel gè gāng alloy steel containing chromium.

The texture is hard to punch, wear-resistant, corrosion-resistant, non-rusty, and can be used to make machines and tools.

2. Chromium infiltration shèn gè is a kind of chemical heat treatment method for steel.

3. Chrome plating dù gè generally refers to electrochrome plating. There are two types of chrome plating, one is decorative chrome and the other is hard chrome.

4. Hook chrome gōu gè Ancient weapons.

Name. 5. Chromite gè tiě kuàng chromium and iron oxide, is the main chromium-containing ore containing liangyan stone, black-brown, mostly granular, lumpy or bean-shaped, is an important metallurgical raw material, and is also used to talk about silver pigments.

CR is chromiumChemical elements, which stands for chromium.

The chemical symbol of chromium is CR, the atomic number is 24, and it is in the periodic stove imperial table.

Belongs to the B family.

It mainly exists in nature in the form of chromite Fecr2O4. by chromium oxide.

Reduced with aluminum, or made of chromium ammonia or chromic acid.

It is prepared by electrolysis. According to its content in the earth's crust, chromium is one of the more widely distributed elements.

Chromium (Cr of the Arguments) plays a role in steel:1. Chromium can improve the strength and hardness of steel.

2. Chromium can improve the high-temperature mechanical properties of steel.

3. Make the steel have good corrosion resistance and oxidation resistance.

4. Reduce the critical cooling rate of steel and improve the hardenability of steel.

5. Prevent the disadvantage of graphite dissipation: chromium significantly increases the brittle transition temperature of steel; Chromium promotes tempering brittleness in steel.

Refer to the above content: Encyclopedia - Chromium.

The pronunciation of chromium should be gè, because chromium is a polyphonic word, so it is often easy to confuse the pronunciation as luo.

Basic meaning: chrome (gè) (gé) (luò), Chinese character. Polyphone.

1) A chemical element, ranked in the fourth period IVB group, with an atomic number of 24.

2) Long hook. 3) Haircuts and shaving.

Before 1985, chromium (cr) was pronounced luo, and after that, it was required that all chemical terms be pronounced as radicals. But the masters of the electroplating plant all continued to read luo.

The correct pronunciation of chromium is ge, not polyphonic. There is no pronunciation of luo in modern Chinese dictionaries or online dictionaries.

It is a mistake to read chrome plating as "degree fall".

There are Cd cadmium and CR chromium in electroplating, and according to legend, in order to distinguish and avoid confusion, CR chromium is pronounced as the sound of "network".

CR is a chromium metal element symbol. Chromium, chemical symbol CR, atomic number 24, belongs to group B in the periodic table.

The name of the element comes from the Greek word for "color", because the compound of chromium has a color, and the element is a steel-gray metal.

It mainly exists in nature in the form of chromite Fecr204. It is reduced from chromium oxide with aluminum, or by electrolysis of chromium ammonia or chromic acid. According to its content in the earth's crust, chromium is one of the most widely distributed elements.

It has more cobalt, nickel, molybdenum, and tungsten than it has found before. This may be due to the fact that the natural compounds of chromium are very stable and insoluble in water, making it difficult to reduce. It has been suggested that the metallic chromium obtained by Wackerland can be used as a carbide of chromium.

CR isChemical elementsofChromium element, pronounced gé.

Chromium, chemical symbol CR, is a steel-gray metal. The name of the element comes from the Greek word for "color", because chromium compounds have color. In 1797 French chemist Walkland in Siberia.

A new mineral was discovered in red lead ore (chromite), which was obtained by carbon reduction the following year. The content of chromium in the earth's crust is the 17th.

Chemical properties. Chromium slowly dissolves in dilute hydrochloric acid.

dilute sulfuric acid, and produce a blue solution. When exposed to air, it turns green because it is oxidized to green CrCl3: Cr + 2HCl = CrCl2 + H2, 4CrCl2 + 4HCl + O2 = 4CrCl3 + 2H2O.

Chromium with concentrated sulfuric acid.

reaction, sulfur dioxide is generated.

and chromium sulfate ( ) 2Cr + 6H2SO4 (concentrated) Cr2 (SO4) 3 + 3SO2 6H2O.

But chromium is insoluble in concentrated nitric acid.

The beam is in a blunt state due to the formation of a tight oxide film on the surface. At high temperatures, chromium can be combined with halogens.

Direct combination of sulfur, nitrogen, carbon, etc.

CR is the chromium element in the chemical element and is pronounced gé.

Chromium, chemical symbol CR, is a steel-gray metal. The name of the element comes from the Greek word for "color", because chromium compounds have color. In 1797 the French chemist Vaukeland discovered a new mineral in Siberian red lead ore (chromium-lead ore), which was obtained by carbon reduction the following year.

The content of chromium in the earth's crust is the 17th.

There is no free state of chromium in nature, mainly in chromite. In the periodic table belongs to group b, chromium has atomic number 24, atomic weight, body-centered cubic crystal, and common valencies are +2, +3, and +6. With an oxidation number of 6, 5, 4, 3, 2, 1, 1, 2, 4, it is the hardest metal.

Chrome: gè

Simplified radical: 钅.

Wubi 86: qtkg

Wubi 98: qtkg

Total strokes: 11

Stroke order coding: apostropy, horizontal, horizontal, horizontal, vertical, vertical, horizontal.

Explanation: A metallic element, symbolized CR, is hard and brittle, with strong corrosion resistance. It is used in electroplating and manufacturing special steels.