astatine vs fluorine vs bromine

astatine (chemical element) | fluorine (chemical element) | bromine (chemical element)

Periodic table location

Images

| astatine | fluorine | bromine atomic symbol | At | F | Br atomic number | 85 | 9 | 35 short electronic configuration | [Xe]6s^24f^145d^106p^5 | [He]2s^22p^5 | [Ar]4s^23d^104p^5 Aufbau diagram | 6p 5d 4f 6s | 2p 2s | 4p 3d 4s block | p | p | p group | 17 | 17 | 17 period | 6 | 2 | 4 atomic mass | 210 u | 18.998403163 u | 79.904 u half-life | 8.1 h | (stable) | (stable)

| astatine | fluorine | bromine phase at STP | solid | gas | liquid melting point | 302 °C | -219.6 °C | -7.3 °C boiling point | | -188.12 °C | 59 °C critical temperature | | 144.13 K | 588 K critical pressure | | 5.172 MPa | 10.34 MPa molar heat of fusion | 6 kJ/mol | 0.26 kJ/mol | 5.8 kJ/mol molar heat of vaporization | 40 kJ/mol | 3.27 kJ/mol | 14.8 kJ/mol specific heat at STP | | 824 J/(kg K) | 947.3 J/(kg K) adiabatic index | | 7/5 | (properties at standard conditions)

| astatine | fluorine | bromine density | | 0.001696 g/cm^3 | 3.12 g/cm^3 liquid density | | | 3.12 g/cm^3 molar volume | | 11200 cm^3/mol | 25.61 cm^3/mol bulk modulus | | | 1.9 GPa refractive index | | 1.000195 | 1.001132 thermal conductivity | 2 W/(m K) | 0.0277 W/(m K) | 0.12 W/(m K) (properties at standard conditions)

| astatine | fluorine | bromine 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 | (silver) | (colorless) | (red) refractive index | | 1.000195 | 1.001132

| astatine | fluorine | bromine valence | 7 | 1 | 5 electronegativity | 2.2 | 3.98 | 2.96 electron affinity | 270.1 kJ/mol (kilojoules per mole) | 328 kJ/mol (kilojoules per mole) | 324.6 kJ/mol (kilojoules per mole) first ionization energy | 920 kJ/mol (kilojoules per mole) | 1681 kJ/mol (kilojoules per mole) | 1139.9 kJ/mol (kilojoules per mole) ionization energies | 920 kJ/mol | 1681 kJ/mol | 3374.2 kJ/mol | 6050.4 kJ/mol | 8407.7 kJ/mol | 11022.7 kJ/mol | 15164.1 kJ/mol | 17868 kJ/mol | 92038.1 kJ/mol | 106434.3 kJ/mol | 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

| astatine | fluorine | bromine term symbol | ^2P_(3/2) | ^2P_(3/2) | ^2P_(3/2) atomic radius | 127 pm | 50 pm | 115 pm covalent radius | 150 pm | 57 pm | 120 pm van der Waals radius | | 147 pm | 185 pm (electronic ground state properties)

| astatine | fluorine | bromine universe abundance | | 4×10^-5 mass% | 7×10^-7 mass% solar abundance | | 5×10^-5 mass% | meteorite abundance | 0 mass% | 0.0087 mass% | 1.2×10^-4 mass% crust abundance | 0 mass% | 0.054 mass% | 3×10^-4 mass% ocean abundance | 0 mass% | 1.3×10^-4 mass% | 0.0067 mass% human abundance | 0 mass% | 0.0037 mass% | 2.9×10^-4 mass% universe molar abundance | | 3×10^-6 mol% | 1×10^-8 mol% solar molar abundance | | 3×10^-6 mol% | meteorite molar abundance | 0 mol% | 0.0097 mol% | 2.3×10^-5 mol% ocean molar abundance | 0 mol% | 4.2×10^-5 mol% | 5.2×10^-4 mol% crust molar abundance | 0 mol% | 0.059 mol% | 7.8×10^-5 mol% human molar abundance | 0 mol% | 0.0012 mol% | 2.3×10^-5 mol%

| astatine | fluorine | bromine half-life | 8.1 h | (stable) | (stable) specific radioactivity | 68278 TBq/g | | decay mode | beta plus decay | | stable isotopes | | F-19 (100%) | Br-79 (50.69%) | Br-81 (49.31%) nuclear spin | At-193: 1/2^+ | At-194: 3^+ | At-195: 1/2^+ | At-196: 3^+ | At-197: 9/2^- | At-198: 3^+ | At-199: 9/2^- | At-200: 3^+ | At-201: 9/2^- | At-203: 9/2^- | At-204: 7^+ | At-205: 9/2^- | At-206: 5^+ | At-207: 9/2^- | At-208: 6^+ | At-209: 9/2^- | At-210: 5^+ | At-211: 9/2^- | At-212: 1^- | At-213: 9/2^- | At-214: 1^- | At-215: 9/2^- | At-216: 1^- | At-217: 9/2^- | At-218: 1^- | At-219: 5/2^- | At-220: 3^- | At-221: 3/2^- | At-223: 3/2^- | F-14: 2^- | F-15: 1/2^+ | F-16: 0^- | F-17: 5/2^+ | F-18: 1^+ | F-19: 1/2^+ | F-20: 2^+ | F-21: 5/2^+ | F-22: 4^+ | F-23: 5/2^+ | F-25: 5/2^+ | F-26: 1^+ | F-27: 5/2^+ | F-29: 5/2^+ | F-31: 5/2^+ | 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 | At-210 (8.1 h) | At-211 (7.2139 h) | At-209 (5.42 h) | At-207 (110 min) | At-208 (97.83 min) | At-206 (30.67 min) | At-205 (26.9 min) | At-204 (9.17 min) | At-203 (7.33 min) | At-220 (223 s) | At-202 (184 s) | At-221 (140 s) | At-201 (85 s) | At-219 (56 s) | At-222 (54 s) | At-223 (50 s) | At-200 (43.2 s) | At-199 (7.03 s) | At-198 (4.2 s) | At-218 (1.5 s) | At-197 (388 ms) | At-196 (388 ms) | At-195 (328 ms) | At-212 (314 ms) | At-194 (40 ms) | At-217 (32.3 ms) | At-193 (28 ms) | At-216 (300 µs) | At-215 (100 µs) | At-214 (558 ns) | At-213 (125 ns) | F-18 (109.771 min) | F-17 (64.49 s) | F-20 (11.07 s) | F-22 (4.23 s) | F-21 (4.158 s) | F-23 (2.23 s) | F-24 (390 ms) | F-25 (50 ms) | F-26 (9.6 ms) | F-27 (5 ms) | F-29 (2.5 ms) | F-30 (260 ns) | F-31 (250 ns) | F-28 (40 ns) | F-16 (11 zs) | F-15 (0.46 zs) | 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 | | 0.0096 b | 6.8 b neutron mass absorption | | 2×10^-5 m^2/kg | 0.002 m^2/kg

| astatine | fluorine | bromine CAS number | 7440-68-8 | 7782-41-4 | 7726-95-6 PubChem CID number | 5460479 | 24524 | 24408 Gmelin number | | 16281 |