Symbol
Xe
Atomic Number
54
Atomic Mass
131.293
Protons
54
Neutrons
77
Electrons
54
Type
Noble Gas
Isotopes
Xenon-124, Xenon-126, Xenon-128, Xenon-129, Xenon-130, Xenon-132, Xenon-134, Xenon-136
Discovery Year
1898
Discovered By
William Ramsay, Morris Travers
Group
18
Period
5
Boiling Point
-108.1°F
Melting Point
-169.4°F
Electron Configuration
[Kr] 5s² 4d¹⁰ 5p⁶
Density (g/cm³)
5.887
Crystal Structure
Face-centered cubic
Magnetism
Diamagnetic
Abundance in Earth's Crust
0.0000087%
Phase at Room Temperature
Gas