Atomic Profile

Argon (Ar)

Discover properties, shell configurations, industrial applications, compounds, and historical occurrences of the Argon element.

18Ar39.948

Melting Point-189.34 °C

Boiling Point-185.85 °C

Density1.784 g/L

Electronegativityno data

Group / PeriodGroup 18, Period 3

Electronic Config[Ne] 3s² 3p⁶

Bohr Shells2, 8, 8

Visualizing the concentric Bohr orbits and energy level shells for Argon.

+18

Shell 1: 2e⁻ | Shell 2: 8e⁻ | Shell 3: 8e⁻

Discovery Details

Discovered by Lord Rayleigh & William Ramsay in the year 1894.

Natural Occurrence

Third most abundant atmospheric gas (0.93% by volume), making it the most abundant noble gas on Earth.

Common Uses & Applications

Below are typical molecular compounds formed by Argon interacting with other elements:

HArF (Argon Fluorohydride - only stable at -265 °C)

Which gas is the third most abundant in dry air by volume?

Watch educational lectures detailing the chemical extraction and molecular spectrums of Argon.

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