氩和氧之间的差异

Key Difference – Argon vs. Oxygen

Argon and Oxygen are two chemical elements in theperiodic table. They are both gaseous elements, where Argon is in thenoble gasfamily and Oxygen is from chalcogen group in the periodic table. Argon is aninert gaswhereas oxygen is a very reactive gas. Oxygen is one of the most abundant elements on this planet while Argon is one of the most abundant noble gases. Argon is produced when high purity oxygen is manufactured. They have relatively close boiling points, but theirchemical propertiesare very different from each other. As you can observe the differences between Argon and Oxygen are numerous. This article attempts to provide you with a clarified understanding of the differences.

什么是氩气？

氩（AR）是a member of a special family; they are called “rare”, “noble” or “inert” gases. All of the gases in this family have a totally filled outermost shell and their chemical reactivity is almost zero. Argon is a元素, colourless, odorless, tasteless and non-toxic gas. Argon is slightly soluble in water. Its abundance in the atmosphere is nearly 0.934% by volume. Argon is considered as the most abundant inert gas. All the members of noble gas family emit light when they are electrically excited; in this case Argon produces a pale blue-violet light.

What is Oxygen?

Oxygen can be considered as地球上最丰富的元素之一. About 21% of free elemental oxygen is present in our atmosphere. In addition, it is combined with other compounds such as water and矿物质. Even our human body functions using oxygen and it contains 65% of oxygen by mass. Oxygen naturally occurs as diatomic gaseous molecules, O₂(g). It is a colorless, tasteless and odorless gas with its unique chemical and physical properties. The density of oxygen is greater than air and has a very low solubility in water.

氧的化学反应性非常高。它在不同条件下几乎与所有元素反应，除了贵重气体和一些反应性金属较低的金属。氧气是旁边最具反应性的元素氟(F).

What is the difference between Argon and Oxygen?

Properties:

Property	Argon	Oxygen
Atomic number	18	8
Electronic configuration	1s² 2s² 2p63s² 3p⁶	1s² 2s² 2p⁴
Boiling point	–185.9°C(–302.6°F)	-182 °C (-297 °F)
Melting point	-189 °C (-308 °F)	-218°C（-361°F）

Heaviness:

Argon:Argon is 1.4 times as heavy as air; it’s not breathable as oxygen and can cause suffocating by setting in the lower parts on the lungs.

Oxygen:Oxygen also denser than air, but it is a light weight gas that is breathable.

Uses:

Argon:Argon is an inert gas even at high temperatures, and for this reason, it is used in some critical industrial processes such as in the manufacturing of high qualitystainless steeland in producing impurity free silicon crystals forsemiconductors. It is widely used as an inert filler gas in light bulbs. It remains un-reactive even when the bulb is heated to high temperatures.

Oxygen:Oxygen is widely used in metal industry with acetylene and other fuel gases for metal cutting, welding, melting, hardening, scarfing, and cleaning. Gaseous oxygen or oxygen enriched air is used in thesteel and ironmanufacturing, in the process of chemical refining and heating to remove carbon, and in the氧化反应.

石油工业还广泛使用氧气作为饲料与碳氢化合物反应，以产生醛和醇等化学物质。

Image Courtesy:

1.Electron shell 018 Argon – no labelBy commons: User: Pumbaa (original work by commons:User:Greg Robson) [CC BY-SA 2.0], via Wikimedia Commons

2.电子壳008氧（双原子非金属） - 无标签By DePiep (Own work) [CC BY-SA 3.0], via Wikimedia Commons