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Element 54 - Xenon (Xe) sound

From xenos, or stranger; discovered 1898. The rarest gas in the atmosphere, xenon is used in specialized light sources such as the high-speed electronic flash bulbs used by photographers. In these, the high volatility of its electron structure produces an instant, intense light.

Properties

Atomic Number: 54
Atomic Weight: 131.29
Electron Configuration (at ground state): 1s22s22p63s23p63d104s24p64d105s25p6
Oxidation States (Bold most stable): 0, +2, +4, +6
Boiling Point (K): 165.1
Melting Point (K): 161.39
Density (at STP -- g/l): 5.90
Atomic Volume (liquid state at boiling point -- cm3/mol) 42.9
Number of stable isotopes: 9
Mass Number (Bold naturally occurring) -- Half-Life -- Disintigration Type: 133 -- 5.25 days -- beta particle (electron) emission
135 -- 9.10 hours -- beta particle (electron) emission
Covalent Radius (Å): 1.31
Atomic Radius (Å): 1.24
First Ionization Potential (V): 12.130
Electronegativity (Pauling's): 2.6
Specific Heat Capacity (at 300K -- J g-1 K-1): 0.158
Heat of Vaporization (kJ/mol): 12.64
Heat of Fusion (kJ/mol): 2.30
Thermal Conductivity (at 300K -- W m-1 K-1): 0.00569
Crystal Structure: Cubic, face centered