Xenon (symbol Xe) is element number 54 of the periodic table and belongs to the “Noble gas” category. Its atomic mass is about 131.29, and its phase under standard conditions is Gas. This element sits in period 5 and group 18 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 18, 8. The short electron configuration of Xenon is [Kr] 4d¹⁰ 5s² 5p⁶. Known uses of Xenon include Flash lamps, Anesthesia and Space research.
The electron configuration of Xenon (Xe), with 54 electrons, is shown below. The last shell (shell 5) is highlighted:
Distribution of 54 electrons of Xenon across shells K to O:
The noble gases are the group 18 elements: their outer shell is full, so under normal conditions they are very unreactive.
The atomic number of Xenon (Xe) is 54; that is, every atom of it has 54 protons.
The electron configuration of Xenon (Xe) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶; in short form it is [Kr] 4d¹⁰ 5s² 5p⁶, and its last shell is 5s² 5p⁶.
The chemical symbol of Xenon is Xe.
Xenon is located in period 5 and group 18 and belongs to the “Noble gas” category.
The atomic mass of Xenon is about 131.29 (atomic mass units).
The phase of Xenon under standard conditions is Gas.
Uses of Xenon include Flash lamps, Anesthesia and Space research.
Xenon was discovered by William Ramsay in 1898.
Helium (He)Neon (Ne)Argon (Ar)Krypton (Kr)Radon (Rn)Oganesson (Og)
Helium (He)Neon (Ne)Argon (Ar)Krypton (Kr)Radon (Rn)Oganesson (Og)
