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Argon is a noble gas with symbol Ar and atomic number 18. It is the third most abundant gas in Earth's atmosphere and the most abundant noble gas in Earth's crust. Learn about its physical and chemical properties, discovery, applications and radioactive isotopes.
Argon is a colourless, odourless, and tasteless gas that belongs to the noble gas group of the periodic table. It is the most abundant and widely used noble gas on Earth, and it is produced by the decay of potassium-40 in rocks.
Το χημικό στοιχείο Αργό (Argon) είναι ένα άχρωμο ευγενές αέριο με ατομικό αριθμό 18 και ατομικό βάρος 39,948 . Έχει θερμοκρασία τήξης -189,3 C° και θερμοκρασία βρασμού -186 C°.
Argon is a colourless, odourless and inert gas that makes up 0.94% of the Earth's atmosphere. It is used in welding, lighting, double-glazing and tyres, and was discovered by Lord Rayleigh and William Ramsay in 1894.
Learn about argon, the third most abundant gas in Earth's atmosphere, and its diverse uses in industry, medicine, and preservation. Find out its history, physical and chemical characteristics, sources, safety, and interesting facts.
Argon is a colorless, odorless and inert gas that belongs to the noble gases. It is abundant in the Earth's atmosphere and space, and has various applications in welding, lasers, dating and medicine.
argon, Chemical element, chemical symbol Ar, atomic number 18. Colourless, odourless, and tasteless, it is the most abundant of the noble gas es on Earth and the one most used in industry. It constitutes about 1% of air and is obtained by distillation of liquid air.
