boron vs iodine

boron (chemical element) | iodine (chemical element)

Periodic table location

Images

| boron | iodine atomic symbol | B | I atomic number | 5 | 53 short electronic configuration | [He]2s^22p^1 | [Kr]5s^24d^105p^5 Aufbau diagram | 2p 2s | 5p 4d 5s block | p | p group | 13 | 17 period | 2 | 5 atomic mass | 10.81 u | 126.90447 u half-life | (stable) | (stable)

| boron | iodine phase at STP | solid | solid melting point | 2075 °C | 113.7 °C boiling point | 4000 °C | 184.3 °C critical temperature | | 819 K critical pressure | | 11.7 MPa molar heat of fusion | 50 kJ/mol | 7.76 kJ/mol molar heat of vaporization | 507 kJ/mol | 20.9 kJ/mol specific heat at STP | 1030 J/(kg K) | 429 J/(kg K) (properties at standard conditions)

| boron | iodine density | 2.46 g/cm^3 | 4.94 g/cm^3 liquid density | 2.08 g/cm^3 | molar volume | 4.394 cm^3/mol | 25.69 cm^3/mol Mohs hardness | 9.3 (between corundum and diamond) | Vickers hardness | 49000 MPa | bulk modulus | 320 GPa | 7.7 GPa ultimate tensile strength | 2 MPa | sound speed | 16200 m/s | thermal expansion | 6×10^-6 K^(-1) | thermal conductivity | 27 W/(m K) | 0.449 W/(m K) (properties at standard conditions)

| boron | iodine electrical type | insulator | insulator resistivity | 10000 Ω m (ohm meters) | 1×10^7 Ω m (ohm meters) electrical conductivity | 1×10^-4 S/m (siemens per meter) | 1×10^-7 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic volume magnetic susceptibility | -2.14×10^-5 | -2.22×10^-5 mass magnetic susceptibility | -8.7×10^-9 m^3/kg (cubic meters per kilogram) | -4.5×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -9.41×10^-11 m^3/mol (cubic meters per mole) | -1.14×10^-9 m^3/mol (cubic meters per mole) work function | 4.45 eV (Polycrystalline) | threshold frequency | 1.076×10^15 Hz (hertz) | color | (black) | (slate gray)

| boron | iodine valence | 3 | 7 electronegativity | 2.04 | 2.66 electron affinity | 26.7 kJ/mol (kilojoules per mole) | 295.2 kJ/mol (kilojoules per mole) first ionization energy | 800.6 kJ/mol (kilojoules per mole) | 1008.4 kJ/mol (kilojoules per mole) ionization energies | 800.6 kJ/mol | 2427.1 kJ/mol | 3659.7 kJ/mol | 25025.8 kJ/mol | 32826.7 kJ/mol | 1008.4 kJ/mol | 1845.9 kJ/mol | 3180 kJ/mol

Reactivity

| boron | iodine term symbol | ^2P_(1/2) | ^2P_(3/2) atomic radius | 85 pm | 140 pm covalent radius | 84 pm | 139 pm van der Waals radius | | 198 pm (electronic ground state properties)

| boron | iodine universe abundance | 1×10^-7 mass% | 1×10^-7 mass% solar abundance | 2×10^-7 mass% | meteorite abundance | 1.6×10^-4 mass% | 2.5×10^-5 mass% crust abundance | 8.6×10^-4 mass% | 4.9×10^-5 mass% ocean abundance | 4.4×10^-4 mass% | 6×10^-6 mass% human abundance | 7×10^-5 mass% | 2×10^-5 mass% universe molar abundance | 1×10^-8 mol% | 1×10^-9 mol% solar molar abundance | 2×10^-8 mol% | meteorite molar abundance | 3×10^-4 mol% | 3×10^-6 mol% ocean molar abundance | 2.5×10^-4 mol% | 2.9×10^-7 mol% crust molar abundance | 0.0017 mol% | 8×10^-6 mol% human molar abundance | 4.1×10^-5 mol% | 1×10^-6 mol%

| boron | iodine half-life | (stable) | (stable) stable isotopes | B-11 (80.2%) | B-10 (19.8%) | I-127 (100%) nuclear spin | B-6: 2^- | B-7: 3/2^- | B-8: 2^+ | B-9: 3/2^- | B-10: 3^+ | B-11: 3/2^- | B-12: 1^+ | B-13: 3/2^- | B-14: 2^- | B-15: 3/2^- | B-16: 0^- | B-17: 3/2^- | B-18: 4^- | B-19: 3/2^- | I-108: 1^+ | I-109: 1/2^+ | I-110: 1^+ | I-111: 5/2^+ | I-112: 1^+ | I-113: 5/2^+ | I-114: 1^+ | I-115: 5/2^+ | I-116: 1^+ | I-117: 5/2^+ | I-118: 2^- | I-119: 5/2^+ | I-120: 2^- | I-121: 5/2^+ | I-122: 1^+ | I-123: 5/2^+ | I-124: 2^- | I-125: 5/2^+ | I-126: 2^- | I-127: 5/2^+ | I-128: 1^+ | I-129: 7/2^+ | I-130: 5^+ | I-131: 7/2^+ | I-132: 4^+ | I-133: 7/2^+ | I-134: 4^+ | I-135: 7/2^+ | I-136: 1^- | I-137: 7/2^+ | I-138: 2^- | I-139: 7/2^+ | I-140: 4^- | I-141: 7/2^+ | I-142: 2^- | I-143: 7/2^+ | I-144: 1^- unstable isotopes | B-8 (770 ms) | B-12 (20.2 ms) | B-13 (17.33 ms) | B-14 (12.5 ms) | B-15 (9.93 ms) | B-17 (5.08 ms) | B-19 (2.92 ms) | B-18 (26 ns) | B-16 (190 ps) | B-9 (845 zs) | B-7 (0.33 zs) | I-129 (15.7 Myr) | I-125 (59.4 days) | I-126 (12.93 days) | I-131 (8.0252 days) | I-124 (100.2 h) | I-133 (20.8 h) | I-123 (13.2235 h) | I-130 (12.4 h) | I-135 (6.58 h) | I-132 (137.7 min) | I-121 (127.2 min) | I-120 (82 min) | I-134 (52.5 min) | I-128 (24.98 min) | I-119 (19.1 min) | I-118 (13.7 min) | I-122 (218 s) | I-117 (133 s) | I-136 (83.4 s) | I-115 (78 s) | I-137 (24.5 s) | I-113 (6.6 s) | I-138 (6.23 s) | I-112 (3.42 s) | I-116 (2.91 s) | I-111 (2.5 s) | I-139 (2.28 s) | I-114 (2.1 s) | I-140 (860 ms) | I-110 (650 ms) | I-141 (430 ms) | I-142 (200 ms) | I-108 (36 ms) | I-109 (103 µs) | I-144 (300 ns) | I-143 (150 ns) neutron cross-section | 760 b | 6.2 b neutron mass absorption | 2.4 m^2/kg | 0.0018 m^2/kg

| boron | iodine CAS number | 7440-42-8 | 7553-56-2 PubChem CID number | 5462311 | 807