Input interpretation
bromine (chemical element)
Periodic table location
Periodic table location
Image
Image
Basic elemental properties
atomic symbol | Br atomic number | 35 short electronic configuration | [Ar]4s^23d^104p^5 Aufbau diagram | 4p 3d 4s block | p group | 17 period | 4 atomic mass | 79.904 u (unified atomic mass units)
Thermodynamic properties
phase at STP | liquid melting point | -7.3 °C (rank: 90th) boiling point | 59 °C (rank: 83rd) critical temperature | 588 K (rank: 10th) critical pressure | 10.34 MPa (rank: 9th) molar heat of fusion | 5.8 kJ/mol (rank: 66th) molar heat of vaporization | 14.8 kJ/mol (rank: 82nd) specific heat at STP | 947.3 J/(kg K) (rank: 10th) (properties at standard conditions)
Material properties
density | 3.12 g/cm^3 (rank: 69th) liquid density | 3.12 g/cm^3 molar volume | 25.61 cm^3/mol bulk modulus | 1.9 GPa (rank: 67th) refractive index | 1.001132 thermal conductivity | 0.12 W/(m K) (rank: 85th) (properties at standard conditions)
Electromagnetic properties
electrical type | insulator resistivity | 1×10^10 Ω m (ohm meters) electrical conductivity | 1×10^-10 S/m (siemens per meter) magnetic type | diamagnetic volume magnetic susceptibility | -1.53×10^-5 mass magnetic susceptibility | -4.9×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -7.83×10^-10 m^3/mol (cubic meters per mole) color | (red) refractive index | 1.001132
Reactivity
valence | 5 electronegativity | 2.96 electron affinity | 324.6 kJ/mol (kilojoules per mole) first ionization energy | 1139.9 kJ/mol (kilojoules per mole) ionization energies | 1139.9 kJ/mol | 2103 kJ/mol | 3470 kJ/mol | 4560 kJ/mol | 5760 kJ/mol | 8550 kJ/mol | 9940 kJ/mol | 18600 kJ/mol
Reactivity
Atomic properties
term symbol | ^2P_(3/2) atomic radius | 115 pm covalent radius | 120 pm van der Waals radius | 185 pm (electronic ground state properties)
(neutral bromine atomic spectrum)
Abundances
universe abundance | 7×10^-7 mass% (rank: 42nd) meteorite abundance | 1.2×10^-4 mass% (rank: 40th) crust abundance | 3×10^-4 mass% (rank: 44th) ocean abundance | 0.0067 mass% (rank: 8th) human abundance | 2.9×10^-4 mass% (rank: 18th) universe molar abundance | 1×10^-8 mol% (rank: 35th) meteorite molar abundance | 2.3×10^-5 mol% (rank: 38th) ocean molar abundance | 5.2×10^-4 mol% (rank: 9th) crust molar abundance | 7.8×10^-5 mol% (rank: 43rd) human molar abundance | 2.3×10^-5 mol% (rank: 19th)
Nuclear properties
half-life | (stable) stable isotopes | Br-79 (50.69%) | Br-81 (49.31%) nuclear spin | Br-67: 1/2^- | Br-68: 3^+ | Br-69: 1/2^- | Br-70: 0^+ | Br-71: 5/2^- | Br-72: 1^+ | Br-73: 1/2^- | Br-74: 0^- | Br-75: 3/2^- | Br-76: 1^- | Br-77: 3/2^- | Br-78: 1^+ | Br-79: 3/2^- | Br-80: 1^+ | Br-81: 3/2^- | Br-82: 5^- | Br-83: 3/2^- | Br-84: 2^- | Br-85: 3/2^- | Br-86: 2^- | Br-87: 3/2^- | Br-88: 2^- | Br-91: 3/2^- | Br-92: 2^- | Br-93: 5/2^- | Br-95: 3/2^- | Br-97: 3/2^- unstable isotopes | Br-77 (57.0361 h) | Br-82 (35.2833 h) | Br-76 (16.2 h) | Br-83 (140 min) | Br-75 (97 min) | Br-84 (31.8 min) | Br-74 (25.4 min) | Br-80 (17.68 min) | Br-78 (6.47 min) | Br-73 (200 s) | Br-85 (174 s) | Br-72 (78.6 s) | Br-87 (55.65 s) | Br-86 (55.1 s) | Br-71 (21.4 s) | Br-88 (16.29 s) | Br-89 (4.4 s) | Br-90 (1.91 s) | Br-91 (541 ms) | Br-92 (343 ms) | Br-93 (102 ms) | Br-70 (79.1 ms) | Br-94 (70 ms) | Br-68 (1.2 µs) | Br-97 (150 ns) | Br-96 (150 ns) | Br-95 (150 ns) | Br-69 (24 ns) neutron cross-section | 6.8 b neutron mass absorption | 0.002 m^2/kg
Identifiers
CAS number | 7726-95-6 PubChem CID number | 24408