hydrogen, iron, I

hydrogen (chemical element) | iron (chemical element) | iodine (chemical element)

Periodic table location

Images

| hydrogen | iron | iodine atomic symbol | H | Fe | I atomic number | 1 | 26 | 53 short electronic configuration | 1s^1 | [Ar]4s^23d^6 | [Kr]5s^24d^105p^5 Aufbau diagram | 1s | 3d 4s | 5p 4d 5s block | s | d | p group | 1 | 8 | 17 period | 1 | 4 | 5 atomic mass | 1.008 u | 55.845 u | 126.90447 u half-life | (stable) | (stable) | (stable)

| hydrogen | iron | iodine phase at STP | gas | solid | solid melting point | -259.14 °C | 1538 °C | 113.7 °C boiling point | -252.87 °C | 2861 °C | 184.3 °C critical temperature | 32.97 K | (unknown) | 819 K critical pressure | 1.293 MPa | (unknown) | 11.7 MPa molar heat of fusion | 0.558 kJ/mol | 13.8 kJ/mol | 7.76 kJ/mol molar heat of vaporization | 0.452 kJ/mol | 347 kJ/mol | 20.9 kJ/mol specific heat at STP | 14300 J/(kg K) | 449 J/(kg K) | 429 J/(kg K) adiabatic index | 7/5 | | (properties at standard conditions)

| hydrogen | iron | iodine density | 8.99×10^-5 g/cm^3 | 7.874 g/cm^3 | 4.94 g/cm^3 liquid density | | 6.98 g/cm^3 | molar volume | 11200 cm^3/mol | 7.092 cm^3/mol | 25.69 cm^3/mol Mohs hardness | | 4 (≈ fluorite) | Vickers hardness | | 608 MPa | Brinell hardness | | 490 MPa | bulk modulus | | 170 GPa | 7.7 GPa shear modulus | | 82 GPa | Young's modulus | | 211 GPa | Poisson ratio | | 0.29 | tensile yield strength | | 50 MPa | refractive index | 1.000132 | (unknown) | sound speed | 1270 m/s | 4910 m/s | thermal expansion | | 1.18×10^-5 K^(-1) | thermal conductivity | 0.1805 W/(m K) | 80 W/(m K) | 0.449 W/(m K) (properties at standard conditions)

| hydrogen | iron | iodine electrical type | | conductor | insulator resistivity | | 9.7×10^-8 Ω m (ohm meters) | 1×10^7 Ω m (ohm meters) electrical conductivity | | 1×10^7 S/m (siemens per meter) | 1×10^-7 S/m (siemens per meter) magnetic type | diamagnetic | ferromagnetic | diamagnetic volume magnetic susceptibility | -2.23×10^-9 | | -2.22×10^-5 mass magnetic susceptibility | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | | -4.5×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -4.999×10^-11 m^3/mol (cubic meters per mole) | | -1.14×10^-9 m^3/mol (cubic meters per mole) Curie point | | 1043 K (kelvins) | work function | | (4.67 to 4.81) eV | threshold frequency | | (1.129×10^15 to 1.163×10^15) Hz (hertz) | color | (colorless) | (gray) | (slate gray) refractive index | 1.000132 | (unknown) |

| hydrogen | iron | iodine valence | 1 | 3 | 7 electronegativity | 2.2 | 1.83 | 2.66 electron affinity | 72.8 kJ/mol (kilojoules per mole) | 15.7 kJ/mol (kilojoules per mole) | 295.2 kJ/mol (kilojoules per mole) first ionization energy | 1312 kJ/mol (kilojoules per mole) | 762.5 kJ/mol (kilojoules per mole) | 1008.4 kJ/mol (kilojoules per mole) ionization energies | 1312 kJ/mol | 762.5 kJ/mol | 1561.9 kJ/mol | 2957 kJ/mol | 5290 kJ/mol | 7240 kJ/mol | 9560 kJ/mol | 12060 kJ/mol | 14580 kJ/mol | 22540 kJ/mol | 25290 kJ/mol | 28000 kJ/mol | 31920 kJ/mol | 34830 kJ/mol | 37840 kJ/mol | 44100 kJ/mol | 47206 kJ/mol | 122200 kJ/mol | 131000 kJ/mol | 140500 kJ/mol | 152600 kJ/mol | 163000 kJ/mol | 1008.4 kJ/mol | 1845.9 kJ/mol | 3180 kJ/mol

Reactivity

| hydrogen | iron | iodine term symbol | ^2S_(1/2) | ^5D_4 | ^2P_(3/2) atomic radius | 25 pm | 140 pm | 140 pm covalent radius | 31 pm | 132 pm | 139 pm van der Waals radius | 120 pm | (unknown) | 198 pm (electronic ground state properties)

| hydrogen | iron | iodine universe abundance | 75 mass% | 0.11 mass% | 1×10^-7 mass% solar abundance | 75 mass% | 0.1 mass% | meteorite abundance | 2.4 mass% | 22 mass% | 2.5×10^-5 mass% crust abundance | 0.15 mass% | 6.3 mass% | 4.9×10^-5 mass% ocean abundance | 11 mass% | 3×10^-7 mass% | 6×10^-6 mass% human abundance | 10 mass% | 0.006 mass% | 2×10^-5 mass% universe molar abundance | 93 mol% | 0.002 mol% | 1×10^-9 mol% solar molar abundance | 93 mol% | 0.003 mol% | meteorite molar abundance | 17 mol% | 7.8 mol% | 3×10^-6 mol% ocean molar abundance | 66 mol% | 3.3×10^-8 mol% | 2.9×10^-7 mol% crust molar abundance | 3.1 mol% | 2.3 mol% | 8×10^-6 mol% human molar abundance | 62 mol% | 6.7×10^-4 mol% | 1×10^-6 mol%

| hydrogen | iron | iodine half-life | (stable) | (stable) | (stable) stable isotopes | H-1 (99.985%) | H-2 (1.5×10^-4) | Fe-56 (91.754%) | Fe-54 (5.845%) | Fe-57 (2.119%) | Fe-58 (0.282%) | I-127 (100%) nuclear spin | H-1: 1/2^+ | H-2: 1^+ | H-3: 1/2^+ | H-4: 2^- | H-5: 1/2^+ | H-6: 2^- | H-7: 1/2^+ | Fe-45: 3/2^+ | Fe-46: 0^+ | Fe-47: 7/2^- | Fe-48: 0^+ | Fe-49: 7/2^- | Fe-50: 0^+ | Fe-51: 5/2^- | Fe-52: 0^+ | Fe-53: 7/2^- | Fe-54: 0^+ | Fe-55: 3/2^- | Fe-56: 0^+ | Fe-57: 1/2^- | Fe-58: 0^+ | Fe-59: 3/2^- | Fe-60: 0^+ | Fe-62: 0^+ | Fe-63: 5/2^- | Fe-64: 0^+ | Fe-65: 1/2^- | Fe-66: 0^+ | Fe-67: 5/2^+ | Fe-68: 0^+ | Fe-69: 1/2^- | Fe-70: 0^+ | Fe-71: 7/2^+ | Fe-72: 0^+ | 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 | H-3 (12.32 yr) | H-6 (0.29 zs) | H-4 (0.139 zs) | H-5 (0.08 zs) | H-7 (0.023 zs) | Fe-60 (2.6 Myr) | Fe-55 (2.737 yr) | Fe-59 (44.495 days) | Fe-52 (8.275 h) | Fe-53 (8.52 min) | Fe-61 (5.98 min) | Fe-62 (68 s) | Fe-63 (6.1 s) | Fe-64 (2 s) | Fe-65 (1.3 s) | Fe-67 (600 ms) | Fe-66 (440 ms) | Fe-51 (305 ms) | Fe-68 (187 ms) | Fe-50 (155 ms) | Fe-69 (109 ms) | Fe-70 (94 ms) | Fe-49 (64.7 ms) | Fe-48 (44 ms) | Fe-47 (21.8 ms) | Fe-46 (12 ms) | Fe-45 (1.89 ms) | Fe-72 (150 ns) | Fe-71 (150 ns) | 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 | 0.332 b | 2.56 b | 6.2 b neutron mass absorption | 0.011 m^2/kg | 0.0015 m^2/kg | 0.0018 m^2/kg

| hydrogen | iron | iodine CAS number | 1333-74-0 | 7439-89-6 | 7553-56-2 PubChem CID number | 783 | 23925 | 807