carbon, hydrogen, rhodium

carbon (chemical element) | hydrogen (chemical element) | rhodium (chemical element)

Periodic table location

Images

| carbon | hydrogen | rhodium atomic symbol | C | H | Rh atomic number | 6 | 1 | 45 short electronic configuration | [He]2s^22p^2 | 1s^1 | [Kr]5s^14d^8 Aufbau diagram | 2p 2s | 1s | 4d 5s block | p | s | d group | 14 | 1 | 9 period | 2 | 1 | 5 atomic mass | 12.011 u | 1.008 u | 102.9055 u half-life | (stable) | (stable) | (stable)

| carbon | hydrogen | rhodium phase at STP | solid | gas | solid melting point | 3550 °C | -259.14 °C | 1964 °C boiling point | 4027 °C | -252.87 °C | 3695 °C critical temperature | | 32.97 K | critical pressure | | 1.293 MPa | molar heat of fusion | 105 kJ/mol | 0.558 kJ/mol | 21.7 kJ/mol molar heat of vaporization | 715 kJ/mol | 0.452 kJ/mol | 495 kJ/mol specific heat at STP | 710 J/(kg K) | 14300 J/(kg K) | 240 J/(kg K) adiabatic index | | 7/5 | (properties at standard conditions)

| carbon | hydrogen | rhodium density | 2.26 g/cm^3 | 8.99×10^-5 g/cm^3 | 12.45 g/cm^3 liquid density | | | 10.7 g/cm^3 molar volume | 5.315 cm^3/mol | 11200 cm^3/mol | 8.2655 cm^3/mol Mohs hardness | 0.5 (between talc and gypsum) | | 6 (≈ microcline) Vickers hardness | | | 1246 MPa Brinell hardness | | | 1100 MPa bulk modulus | 33 GPa | | 380 GPa shear modulus | | | 150 GPa Young's modulus | | | 275 GPa Poisson ratio | | | 0.26 refractive index | 2.417 | 1.000132 | sound speed | 18350 m/s | 1270 m/s | 4700 m/s thermal expansion | 7.1×10^-6 K^(-1) | | 8.2×10^-6 K^(-1) thermal conductivity | 140 W/(m K) | 0.1805 W/(m K) | 150 W/(m K) (properties at standard conditions)

| carbon | hydrogen | rhodium electrical type | conductor | | conductor resistivity | 1×10^-5 Ω m (ohm meters) | | 4.3×10^-8 Ω m (ohm meters) electrical conductivity | 100000 S/m (siemens per meter) | | 2.3×10^7 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic | paramagnetic volume magnetic susceptibility | -1.4×10^-5 | -2.23×10^-9 | 1.693×10^-4 mass magnetic susceptibility | -6.2×10^-9 m^3/kg (cubic meters per kilogram) | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | 1.36×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -7.45×10^-11 m^3/mol (cubic meters per mole) | -4.999×10^-11 m^3/mol (cubic meters per mole) | 1.4×10^-9 m^3/mol (cubic meters per mole) work function | 5 eV (Polycrystalline) | | 4.98 eV (Polycrystalline) threshold frequency | 1.209×10^15 Hz (hertz) | | 1.204×10^15 Hz (hertz) color | (black) | (colorless) | (silver) refractive index | 2.417 | 1.000132 |

| carbon | hydrogen | rhodium valence | 4 | 1 | 6 electronegativity | 2.55 | 2.2 | 2.28 electron affinity | 153.9 kJ/mol (kilojoules per mole) | 72.8 kJ/mol (kilojoules per mole) | 109.7 kJ/mol (kilojoules per mole) first ionization energy | 1086.5 kJ/mol (kilojoules per mole) | 1312 kJ/mol (kilojoules per mole) | 719.7 kJ/mol (kilojoules per mole) ionization energies | 1086.5 kJ/mol | 2352.6 kJ/mol | 4620.5 kJ/mol | 6222.7 kJ/mol | 37831 kJ/mol | 47277 kJ/mol | 1312 kJ/mol | 719.7 kJ/mol | 1740 kJ/mol | 2997 kJ/mol

Reactivity

| carbon | hydrogen | rhodium term symbol | ^3P_0 | ^2S_(1/2) | ^4F_(9/2) atomic radius | 70 pm | 25 pm | 135 pm covalent radius | 76 pm | 31 pm | 142 pm van der Waals radius | 170 pm | 120 pm | (electronic ground state properties)

| carbon | hydrogen | rhodium universe abundance | 0.5 mass% | 75 mass% | 6×10^-8 mass% solar abundance | 0.3 mass% | 75 mass% | 2×10^-7 mass% meteorite abundance | 1.5 mass% | 2.4 mass% | 1.8×10^-5 mass% crust abundance | 0.18 mass% | 0.15 mass% | 7×10^-8 mass% ocean abundance | 0.0028 mass% | 11 mass% | human abundance | 23 mass% | 10 mass% | universe molar abundance | 0.05 mol% | 93 mol% | 7×10^-10 mol% solar molar abundance | 0.03 mol% | 93 mol% | 2×10^-9 mol% meteorite molar abundance | 1.8 mol% | 17 mol% | 4×10^-6 mol% ocean molar abundance | 0.0014 mol% | 66 mol% | crust molar abundance | 0.31 mol% | 3.1 mol% | 9.9×10^-9 mol% human molar abundance | 12 mol% | 62 mol% |

| carbon | hydrogen | rhodium half-life | (stable) | (stable) | (stable) stable isotopes | C-12 (98.89%) | C-13 (1.11%) | H-1 (99.985%) | H-2 (1.5×10^-4) | Rh-103 (100%) nuclear spin | C-8: 0^+ | C-9: 3/2^- | C-10: 0^+ | C-11: 3/2^- | C-12: 0^+ | C-13: 1/2^- | C-14: 0^+ | C-15: 1/2^+ | C-16: 0^+ | C-17: 3/2^+ | C-18: 0^+ | C-19: 1/2^+ | C-20: 0^+ | C-21: 1/2^+ | C-22: 0^+ | 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^+ | Rh-89: 7/2^+ | Rh-90: 0^+ | Rh-91: 9/2^+ | Rh-92: 2^+ | Rh-93: 9/2^+ | Rh-94: 4^+ | Rh-95: 9/2^+ | Rh-96: 6^+ | Rh-97: 9/2^+ | Rh-98: 2^+ | Rh-99: 1/2^- | Rh-100: 1^- | Rh-101: 1/2^- | Rh-103: 1/2^- | Rh-104: 1^+ | Rh-105: 7/2^+ | Rh-106: 1^+ | Rh-107: 7/2^+ | Rh-108: 1^+ | Rh-109: 7/2^+ | Rh-111: 7/2^+ | Rh-112: 1^+ | Rh-113: 7/2^+ | Rh-114: 1^+ | Rh-115: 7/2^+ | Rh-116: 1^+ | Rh-117: 7/2^+ | Rh-119: 7/2^+ | Rh-121: 7/2^+ unstable isotopes | C-14 (5700 yr) | C-11 (20.334 min) | C-10 (19.29 s) | C-15 (2.449 s) | C-16 (747 ms) | C-17 (193 ms) | C-9 (126.5 ms) | C-18 (92 ms) | C-19 (49 ms) | C-20 (14 ms) | C-22 (6.2 ms) | C-21 (30 ns) | C-8 (2 zs) | 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) | Rh-101 (3.3 yr) | Rh-102 (207 days) | Rh-99 (16.1 days) | Rh-105 (35.36 h) | Rh-100 (20.8 h) | Rh-97 (30.67 min) | Rh-107 (22 min) | Rh-96 (9.9 min) | Rh-98 (8.72 min) | Rh-95 (5.02 min) | Rh-109 (80 s) | Rh-94 (70.6 s) | Rh-104 (42.3 s) | Rh-106 (30.07 s) | Rh-110 (28.5 s) | Rh-108 (16.8 s) | Rh-93 (11.9 s) | Rh-111 (11 s) | Rh-112 (3.4 s) | Rh-113 (2.8 s) | Rh-114 (1.85 s) | Rh-91 (1.47 s) | Rh-115 (0.99 s) | Rh-116 (680 ms) | Rh-92 (500 ms) | Rh-117 (440 ms) | Rh-118 (266 ms) | Rh-121 (151 ms) | Rh-120 (136 ms) | Rh-90 (12 ms) | Rh-89 (1.5 µs) | Rh-122 (300 ns) | Rh-119 (150 ns) neutron cross-section | 0.0035 b | 0.332 b | 145 b neutron mass absorption | 1.5×10^-5 m^2/kg | 0.011 m^2/kg | 0.063 m^2/kg