Neon is a non metallic element or a noble gas element

Elemental noble gases.

Neon, a chemical element. The chemical symbol ne, atomic number 10, atomic weight, belongs to the periodic system zero group, and is one of the members of noble gases. 1898 British w

Ramsey and Travers discover a new rare gas in liquid air, named Neon, which means novelty. Neon is abundant in the Earth's atmosphere as a percentage by volume), and there are 3 isotopes: Neon-20, Neon-21, and Neon-22.

Neon is a colorless, odorless, tasteless gas, melting point, boiling point, gas density gram liters (0, 1 105 Pa), solubility in water μl kg water. In general, neon does not form compounds. Neon can be prepared by low-temperature selective adsorption of liquid air fractionation products.

Neon emits an orange-red glow when discharged, and is used to make neon signs, and is also widely used in high-energy physics research.

Element description: one of the noble gas elements, colorless, odorless, tasteless, gas density grams, liquid density gram cm3, melting point, boiling point, chemical properties are extremely inactive, ionization energy electron volts, can not burn, does not support combustion, in general does not generate compounds, gaseous neon is a monoatomic molecule, neon also has a special property is the ratio of gas to liquid volume, most cryogenic liquid gases produce 500 to 800 volumes of gas at room temperature, and neon produces more than 1400 volumes of gas. This makes it easier to store and transport.

100 liters of air contains about milliliters of neon.

Elemental Uses: Widely used in high-energy physics research, allowing neon to fill the spark chamber to detect and particle paths. It is also a good raw material for making neon lights and indicator lights, and it can be mixed with argon to produce beautiful blue light, and can also be used to fill mercury lamps and sodium vapor lamps.

Liquid neon is also used as a refrigerant.

Elemental Auxiliary Materials: After the discovery of argon and helium, Lemsak studied their properties and determined their atomic weights. He then considers their position in the periodic table.

Since the properties of helium and argon were not similar to other elements that had been discovered, he proposed that a new group of chemical elements be included in the periodic table of chemical elements, with helium and argon as members of this group for the time being. He also deduced that the group should also have an element with an atomic weight of 20, based on Mendeleev's hypothesis about the periodic classification of elements.

Of course, it is a noble gas elemental horn.

Noble gases are not non-metals.

Noble gases are a separate class. Because chemically speaking, the properties of noble gases and non-metallic elements are different. Guess.

Noble gases refer to gases corresponding to all group 0 elements on the periodic table, also known as noble gases. At room temperature and pressure, they are all colorless and odorless monoatomic gases, which are difficult to carry out chemical reactions. There are eight types of noble gases, which are helium (He), neon (Ne), argon (Ar), krypton (KR), xenon (Xe), radon (RN, radioactive), (gas Olympian) (OG, radioactive, man-made element).

Among them, OG is a rare gas synthesized artificially, and the nucleus is very unstable, with a short half-life of only 5 milliseconds.

Elemental elements are divided into metallic elemental, non-metallic elemental, and noble gases based on their chemical and physical properties.

Elemental metals refer to elements with metallic properties, usually with good electrical conductivity, thermal conductivity, and ductility, and can form cations, alloys, and metal crystals.

Non-metallic elemental chain refers to elements that do not have metallic characteristics, usually have poor conductive socks lead, thermal conductivity and ductility, common non-metallic elements include oxygen, nitrogen, sulfur, carbon, etc.

Noble gases refer to the elements located in group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon. These exciters have a stable electron shell structure and are characterized by low reactivity, colorlessness, odorlessness, and non-toxicity.

Therefore, according to the chemical and physical properties of the elements, we can divide the elemental elements into metallic elemental, nonmetallic elemental, and noble gases.

The relative atomic mass of neon gas is 20. Neon is a colorless, odorless, non-flammable noble gas. It is a gaseous inert gas at room temperature, which is very inactive, does not burn, and does not support combustion.

When performing a low-voltage discharge, the emission lines are very visible in red. Liquid neon has the advantages of low boiling point, high latent heat of evaporation, and safe use.

Preparation method: Air separation method: Extract crude helium and neon mixture from the air separation unit by condensation method.

Pure neon and helium mixture with a purity of more than 99% is obtained from crude helium and neon mixture after hydrogen removal and nitrogen removal, and 99.99% of high-purity neon can be prepared by separation and purification. At high concentrations, the partial pressure of lead and oxygen in the air can be reduced and there is a risk of suffocation. Manifestations include rapid breathing, difficulty concentrating, ataxia, followed by fatigue, irritability, nausea, and death.

In general, no special protective tombs are required for production.

Main uses: 1. It is used for neon lights and as a filling medium for the electronics industry.

2. It is used in laser technology, such as visual luminescence indicator, voltage regulation, and laser mixture.

3. Neonox mixture is used instead of helium oxygen for respiration.

4. Used as low-temperature coolant, standard gas, special mixture, etc.

5. It is used for high-energy physics research, so that neon is filled with a spark-like plum chamber to detect the behavior of particles.

Substances made up of atoms are: noble gases.

Elemental substances, such as: helium, neon, argon, krypton, xenon, radon.

Wait; Elemental metals, such as copper, iron, nickel, magnesium, calcium, aluminum.

Wait; Certain non-metallic solid elements, such as: carbon, fluorine, silicon, phosphorus, sulfur, arsenic. Wait;

Elemental metals and noble gases are directly composed of (atoms).

Analysis: It can be answered according to the classification of substances Elemental is a pure substance composed of one element Compound is a pure substance composed of different elements Oxide is composed of two elements, one of which is a compound of oxygen element Hongxun a, oxygen is a pure substance composed of an element, which belongs to elemental; b. This neon gas is a pure substance composed of an element, which belongs to the element; c. Water vapor is an oxide composed of two elements, hydrogen and oxygen, which is not elemental; d. Mercury vapor is a pure substance composed of an element, which belongs to the elemental Comments: This question mainly examines the concepts of elemental edge and oxide, and makes the correct answer according to the concept of elemental and oxide