n.ar,atomic number 18 参考例子 1.The effect of nitrogen can be overcome by sheathing the flame inargon. 氮的影响则可以通过用氩气包覆火焰而予以克服。 2.So if the Company has found a new way to use Argon, that would be a mighty useful secret. ...
简写符号:Ar argon英语解释 名词argon: a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere 同义词:Ar, atomic number 18argon例句 A colorless, odorless, tasteless, gaseous mixture, mainly nitrogen(approximately78 percent) and oxygen(ap...
Argon Atomic Number: 18Argon Atomic Weight: 39.948What is Argon?Argon (Ar, atomic number 18) is the third most common gas in the world, even more so than carbon dioxide. The word "argon" means inactive, inert in Greek and refers to this gas in that it reacts with very few other ...
Argon (Ar) was discovered in 1894 by Sir William Ramsay and Lord Baron Rayleigh. Argon makes up about 1% of the earth atmosphere. Molecules of argon are mono-atomic: Ar. Argon is a colorless, odorless, tasteless gas. Argon is chemically inert. to top Extraction...
Argon is a chemical element with the 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 the Earth's atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as w
Element Symbol: Ar Atomic Number: 18 Atomic Weight: 39.948 Appearance: Colorless inert gas Group: Group 18 (Noble Gas) Period: Period 3 Discovery: Lord Rayleigh and William Ramsay (1894) Discovery Argon was discovered by Sir William Ramsay and Lord Rayleigh in 1894 (Scotland). Prior to the ...
Atomic Symbol: Ar Atomic Number: 18 Atomic Weight: 39.984 Isotopes andAbundances:40Ar(99.6%),38Ar(0.06%), and36Ar(0.34%) 1 Atm Melting Point: 83.95 K 1 Atm Boiling Point: 87.29 K Common Valences: 0 First Ionization Potential: 1520.6 kJ mol−1 ...
Argon (Ar) is one of the noble gases and has an atomic number of eighteen, meaning it has eighteen protons in the nucleus of an atom of argon. Interesting Argon Facts: Argon is the third most prevalent gas in the Earth's atmosphere, found at 9,300 parts per million. It makes up...
Ar,atomic number 18 chemical element,element- any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter argonon,inert gas,noble gas- any of the chemically inert gaseous elements...