- On Earth, the vast majority of argon is the isotope argon-40, which arises from the radioactive decay of potassium-40, according to Chemicool.了解详细信息：On Earth, the vast majority of argon is the isotope argon-40, which arises from the radioactive decay of potassium-40, according to Chemicool.www.livescience.com/29023-argon.htmlArgon was first isolated from air in 1894 by Lord Rayleigh and Sir William Ramsay at University College London by removing oxygen, carbon dioxide, water, and nitrogen from a sample of clean air. [19]en.wikipedia.org/wiki/Argon
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Argon is extracted industrially by the fractional distillation of liquid air in a cryogenic air separation unit; a process that separates liquid nitrogen, which boils at 77.3 K, from argon, which boils at 87.3 K, and liquid oxygen, which boils at 90.2 K. About 700,000 tonnes of argon are produced worldwide every year. 展开
Argon is a chemical element; it has symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv). It … 展开
Argon constitutes 0.934% by volume and 1.288% by mass of Earth's atmosphere. Air is the primary industrial source of purified argon products. Argon is isolated from air by fractionation, … 展开
The main isotopes of argon found on Earth are Ar (99.6%), Ar (0.34%), and Ar (0.06%). Naturally occurring K, with a half-life of 1.25×10 years, decays to stable Ar (11.2%) by electron capture or positron emission, and also to stable Ca (88.8%) by beta decay 展开
Argon has approximately the same solubility in water as oxygen and is 2.5 times more soluble in water than nitrogen. Argon is colorless, … 展开
Argon's complete octet of electrons indicates full s and p subshells. This full valence shell makes argon very stable and extremely resistant to … 展开
CC-BY-SA 许可证中的维基百科文本 Argon | Properties, Uses, Atomic Number, & Facts
2024年11月8日 · Argon constitutes 1.288 percent of the atmosphere by weight and 0.934 percent by volume and is found occluded in rocks. Although the stable isotopes argon-36 and argon-38 make up all but a trace of this element in the …
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Argon - Element information, properties and uses | Periodic Table
Most argon goes to making steel where it is blown through the molten iron, along with oxygen. Argon does the stirring while the oxygen removes carbon as carbon dioxide. It is also used …
Argon (Ar) - Definition, Preparation, Properties, Uses
2024年6月26日 · Argon is a versatile, inert gas with varied applications, from welding to preserving artifacts. Its non-reactivity and safety make it valuable in industrial and scientific settings. Understanding its properties, uses, and safe …
Argon (Ar) - Element information, Properties and Uses …
2018年7月25日 · The argon atom is made up of 18 protons and 18 electrons. It has eight electrons in its outer shell. Argon is a colorless and odorless gas under normal conditions. When argon is activated by a high-voltage electric field, it …
10 Argon Facts - Ar or Atomic Number 18 - ThoughtCo
2020年10月2日 · The most abundant isotope of argon in the universe is argon-36, which is made when stars with a mass about 11 times greater than the Sun are in their silicon-burning phase. In this phase, an alpha particle (helium nucleus) is …
Chemistry for Kids: Elements - Argon - Ducksters
Argon is usually produced from liquid air as a byproduct of the production of nitrogen and oxygen. How is argon used today? Because argon is the most abundant and cheapest of the noble …
Argon – expert written, user friendly element information
2011年10月24日 · Source: Argon is produced when 40 K present naturally in the earth’s crust undergoes radioactive decay to 40 Ar. The argon makes its way into the atmosphere. Argon is produced commercially by fractional distillation of …
Argon | Ar (Element) - PubChem
Argon was discovered by Sir William Ramsay, a Scottish chemist, and Lord Rayleigh, an English chemist, in 1894. Argon makes up 0.93% of the earth's atmosphere, making it the third most abundant gas. Argon is obtained from …
Argon Element | Uses, Facts, Physical & Chemical Characteristics
Argon is produced by fractional distillation of liquid air [3]. Physical Characteristics. Argon is colorless and odorless gas. Argon in solid state is white and have a face-centered cubical …
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