Compare Element Properties

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Property	Ar Argon	? N/A
Atomic number	18	N/A
Symbol	Ar	N/A
Name	Argon	N/A
Category	noble-gas	N/A
Standard Atomic Weight	39.948 u	N/A
Period	3	N/A
Group	18	N/A
Block	p	N/A
Phase at STP	gas	N/A
Electron configuration	[Ne]3s23p6	N/A
Oxidation states	[0]	N/A
Electronegativity (Pauling)	N/A	N/A
Electron affinity	-1 eV	N/A
Density	1.7837 kg/m³	N/A
Melting point	-189.35 °C	N/A
Boiling point	-185.85 °C	N/A
Discovery year	1894	N/A