Input interpretation
hydrogen (chemical element) | chlorine (chemical element)
Periodic table location
Periodic table location
Images
Images
Basic elemental properties
| hydrogen | chlorine atomic symbol | H | Cl atomic number | 1 | 17 short electronic configuration | 1s^1 | [Ne]3s^23p^5 Aufbau diagram | 1s | 3p 3s block | s | p group | 1 | 17 period | 1 | 3 atomic mass | 1.008 u | 35.45 u half-life | (stable) | (stable)
Thermodynamic properties
| hydrogen | chlorine phase at STP | gas | gas melting point | -259.14 °C | -101.5 °C boiling point | -252.87 °C | -34.04 °C critical temperature | 32.97 K | 416.9 K critical pressure | 1.293 MPa | 7.991 MPa molar heat of fusion | 0.558 kJ/mol | 3.2 kJ/mol molar heat of vaporization | 0.452 kJ/mol | 10.2 kJ/mol specific heat at STP | 14300 J/(kg K) | 478.2 J/(kg K) adiabatic index | 7/5 | 7/5 (properties at standard conditions)
Material properties
| hydrogen | chlorine density | 8.99×10^-5 g/cm^3 | 0.003214 g/cm^3 molar volume | 11200 cm^3/mol | 11030 cm^3/mol bulk modulus | | 1.1 GPa refractive index | 1.000132 | 1.000773 sound speed | 1270 m/s | 206 m/s thermal conductivity | 0.1805 W/(m K) | 0.0089 W/(m K) (properties at standard conditions)
Electromagnetic properties
| hydrogen | chlorine electrical type | | insulator resistivity | | 100 Ω m (ohm meters) electrical conductivity | | 0.01 S/m (siemens per meter) magnetic type | diamagnetic | diamagnetic volume magnetic susceptibility | -2.23×10^-9 | -2.31×10^-8 mass magnetic susceptibility | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | -7.2×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -4.999×10^-11 m^3/mol (cubic meters per mole) | -5.11×10^-10 m^3/mol (cubic meters per mole) color | (colorless) | (yellow) refractive index | 1.000132 | 1.000773
Reactivity
| hydrogen | chlorine valence | 1 | 5 electronegativity | 2.2 | 3.16 electron affinity | 72.8 kJ/mol (kilojoules per mole) | 349 kJ/mol (kilojoules per mole) first ionization energy | 1312 kJ/mol (kilojoules per mole) | 1251.2 kJ/mol (kilojoules per mole) ionization energies | 1312 kJ/mol | 1251.2 kJ/mol | 2298 kJ/mol | 3822 kJ/mol | 5158.6 kJ/mol | 6542 kJ/mol | 9362 kJ/mol | 11018 kJ/mol | 33604 kJ/mol | 38600 kJ/mol | 43961 kJ/mol
Reactivity
Atomic properties
| hydrogen | chlorine term symbol | ^2S_(1/2) | ^2P_(3/2) atomic radius | 25 pm | 100 pm covalent radius | 31 pm | 102 pm van der Waals radius | 120 pm | 175 pm (electronic ground state properties)
Abundances
| hydrogen | chlorine universe abundance | 75 mass% | 1×10^-4 mass% solar abundance | 75 mass% | 8×10^-4 mass% meteorite abundance | 2.4 mass% | 0.037 mass% crust abundance | 0.15 mass% | 0.017 mass% ocean abundance | 11 mass% | 2 mass% human abundance | 10 mass% | 0.12 mass% universe molar abundance | 93 mol% | 4×10^-6 mol% solar molar abundance | 93 mol% | 3×10^-5 mol% meteorite molar abundance | 17 mol% | 0.016 mol% ocean molar abundance | 66 mol% | 0.35 mol% crust molar abundance | 3.1 mol% | 0.0099 mol% human molar abundance | 62 mol% | 0.021 mol%
Nuclear properties
| hydrogen | chlorine half-life | (stable) | (stable) stable isotopes | H-1 (99.985%) | H-2 (1.5×10^-4) | Cl-35 (75.77%) | Cl-37 (24.23%) 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^+ | Cl-28: 1^+ | Cl-29: 3/2^+ | Cl-30: 3^+ | Cl-31: 3/2^+ | Cl-32: 1^+ | Cl-33: 3/2^+ | Cl-34: 0^+ | Cl-35: 3/2^+ | Cl-36: 2^+ | Cl-37: 3/2^+ | Cl-38: 2^- | Cl-39: 3/2^+ | Cl-40: 2^- | Cl-41: 1/2^+ | Cl-43: 1/2^+ | Cl-45: 1/2^+ | Cl-47: 3/2^+ | Cl-49: 3/2^+ | Cl-51: 3/2^+ 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) | Cl-36 (0.3 Myr) | Cl-39 (56.2 min) | Cl-38 (37.23 min) | Cl-40 (81 s) | Cl-41 (38.4 s) | Cl-42 (6.8 s) | Cl-43 (3.13 s) | Cl-33 (2.511 s) | Cl-34 (1.5264 s) | Cl-44 (560 ms) | Cl-45 (413 ms) | Cl-32 (298 ms) | Cl-46 (232 ms) | Cl-31 (150 ms) | Cl-47 (101 ms) | Cl-50 (20 ms) | Cl-51 (200 ns) | Cl-48 (200 ns) | Cl-49 (170 ns) | Cl-30 (30 ns) | Cl-29 (20 ns) neutron cross-section | 0.332 b | 35.3 b neutron mass absorption | 0.011 m^2/kg | 0.033 m^2/kg
Identifiers
| hydrogen | chlorine CAS number | 1333-74-0 | 7782-50-5 PubChem CID number | 783 | 24526