xenon

xenon (chemical element)

Periodic table location

Image

atomic symbol | Xe atomic number | 54 short electronic configuration | [Kr]5s^24d^105p^6 Aufbau diagram | 5p 4d 5s block | p group | 18 period | 5 atomic mass | 131.293 u (unified atomic mass units)

phase at STP | gas melting point | -111.8 °C (rank: 94th) boiling point | -108 °C (rank: 86th) critical temperature | 289.77 K (rank: 13th) critical pressure | 5.841 MPa (rank: 13th) molar heat of fusion | 2.3 kJ/mol (rank: 79th) molar heat of vaporization | 12.64 kJ/mol (rank: 83rd) specific heat at STP | 158.32 J/(kg K) (rank: 67th) adiabatic index | 5/3 (rank: 1st) (properties at standard conditions)

density | 0.0059 g/cm^3 (rank: 87th) molar volume | 22000 cm^3/mol refractive index | 1.000702 sound speed | 1090 m/s (rank: 65th) thermal conductivity | 0.00565 W/(m K) (rank: 93rd) (properties at standard conditions)

magnetic type | diamagnetic volume magnetic susceptibility | -2.54×10^-8 mass magnetic susceptibility | -4.3×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -5.65×10^-10 m^3/mol (cubic meters per mole) color | (colorless) refractive index | 1.000702

valence | 6 electronegativity | 2.6 electron affinity | 0 kJ/mol (kilojoules per mole) first ionization energy | 1170.4 kJ/mol (kilojoules per mole) ionization energies | 1170.4 kJ/mol | 2046.4 kJ/mol | 3099.4 kJ/mol

Reactivity

term symbol | ^1S_0 atomic radius | 108 pm covalent radius | 140 pm van der Waals radius | 216 pm (electronic ground state properties)

(neutral xenon atomic spectrum)

universe abundance | 1×10^-6 mass% (rank: 33rd) crust abundance | 2×10^-9 mass% (rank: 83rd) ocean abundance | 5×10^-10 mass% (rank: 54th) universe molar abundance | 9×10^-9 mol% (rank: 42nd) ocean molar abundance | 2.4×10^-11 mol% (rank: 66th) crust molar abundance | 3×10^-10 mol% (rank: 84th)

half-life | (stable) stable isotopes | Xe-132 (26.909%) | Xe-129 (26.4%) | Xe-131 (21.232%) | Xe-134 (10.436%) | Xe-136 (8.857%) | Xe-130 (4.071%) | Xe-128 (1.91%) | Xe-124 (9.5×10^-4) | Xe-126 (8.9×10^-4) nuclear spin | Xe-110: 0^+ | Xe-111: 5/2^+ | Xe-112: 0^+ | Xe-113: 5/2^+ | Xe-114: 0^+ | Xe-115: 5/2^+ | Xe-116: 0^+ | Xe-117: 5/2^+ | Xe-118: 0^+ | Xe-119: 5/2^+ | Xe-120: 0^+ | Xe-121: 5/2^+ | Xe-122: 0^+ | Xe-123: 1/2^+ | Xe-124: 0^+ | Xe-125: 1/2^+ | Xe-126: 0^+ | Xe-127: 1/2^+ | Xe-128: 0^+ | Xe-129: 1/2^+ | Xe-130: 0^+ | Xe-131: 3/2^+ | Xe-132: 0^+ | Xe-133: 3/2^+ | Xe-134: 0^+ | Xe-135: 3/2^+ | Xe-136: 0^+ | Xe-137: 7/2^- | Xe-138: 0^+ | Xe-139: 3/2^- | Xe-140: 0^+ | Xe-141: 5/2^- | Xe-142: 0^+ | Xe-143: 5/2^- | Xe-144: 0^+ | Xe-145: 3/2^- | Xe-146: 0^+ | Xe-147: 3/2^- unstable isotopes | Xe-127 (36.345 days) | Xe-133 (125.8 h) | Xe-122 (20.1 h) | Xe-125 (16.9 h) | Xe-135 (9.14 h) | Xe-123 (124.8 min) | Xe-121 (40.17 min) | Xe-120 (40 min) | Xe-138 (14.08 min) | Xe-119 (5.83 min) | Xe-118 (230 s) | Xe-137 (229.1 s) | Xe-117 (61 s) | Xe-116 (59 s) | Xe-139 (39.68 s) | Xe-115 (18 s) | Xe-140 (13.6 s) | Xe-114 (10 s) | Xe-113 (2.74 s) | Xe-112 (2.7 s) | Xe-141 (1.73 s) | Xe-142 (1.25 s) | Xe-111 (740 ms) | Xe-143 (511 ms) | Xe-144 (388 ms) | Xe-145 (188 ms) | Xe-146 (146 ms) | Xe-147 (100 ms) | Xe-110 (93 ms) neutron cross-section | 25 b neutron mass absorption | 0.0083 m^2/kg

CAS number | 7440-63-3 PubChem CID number | 23991 Gmelin number | 1125