Question

What is Argon Element?​

Answer 1

Answer:

• 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).

Symbol: Ar

Atomic mass: 39.948 u

Atomic number: 18

Electron configuration: [Ne] 3s²3p⁶

When liquid (at b.p.): 1.3954 g/cm3

Density (at STP): 1.784 g/L

Answer 2

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.