element types of rubidium fluoride

rubidium fluoride | element types

fluorine | rubidium

Periodic table location

Images

| fluorine | rubidium atomic symbol | F | Rb atomic number | 9 | 37 short electronic configuration | [He]2s^22p^5 | [Kr]5s^1 Aufbau diagram | 2p 2s | 5s block | p | s group | 17 | 1 period | 2 | 5 atomic mass | 18.998403163 u | 85.4678 u half-life | (stable) | (stable)

| fluorine | rubidium phase at STP | gas | solid melting point | -219.6 °C | 39.31 °C boiling point | -188.12 °C | 688 °C critical temperature | 144.13 K | 2093 K critical pressure | 5.172 MPa | 16 MPa molar heat of fusion | 0.26 kJ/mol | 2.19 kJ/mol molar heat of vaporization | 3.27 kJ/mol | 72 kJ/mol specific heat at STP | 824 J/(kg K) | 364 J/(kg K) adiabatic index | 7/5 | (properties at standard conditions)

| fluorine | rubidium density | 0.001696 g/cm^3 | 1.532 g/cm^3 liquid density | | 1.46 g/cm^3 molar volume | 11200 cm^3/mol | 55.79 cm^3/mol Mohs hardness | | 0.3 (between talc and gypsum) Brinell hardness | | 0.216 MPa bulk modulus | | 2.5 GPa Young's modulus | | 2.4 GPa refractive index | 1.000195 | sound speed | | 1300 m/s thermal conductivity | 0.0277 W/(m K) | 58 W/(m K) (properties at standard conditions)

| fluorine | rubidium electrical type | | conductor resistivity | | 1.2×10^-7 Ω m (ohm meters) electrical conductivity | | 8.3×10^6 S/m (siemens per meter) magnetic type | | paramagnetic volume magnetic susceptibility | | 3.98×10^-6 mass magnetic susceptibility | | 2.6×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | | 2.22×10^-10 m^3/mol (cubic meters per mole) work function | | 2.26 eV (Polycrystalline) threshold frequency | | 5.467×10^14 Hz (hertz) color | (colorless) | (silver) refractive index | 1.000195 |

| fluorine | rubidium valence | 1 | 1 electronegativity | 3.98 | 0.82 electron affinity | 328 kJ/mol (kilojoules per mole) | 46.9 kJ/mol (kilojoules per mole) first ionization energy | 1681 kJ/mol (kilojoules per mole) | 403 kJ/mol (kilojoules per mole) ionization energies | 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 | 403 kJ/mol | 2633 kJ/mol | 3860 kJ/mol | 5080 kJ/mol | 6850 kJ/mol | 8140 kJ/mol | 9570 kJ/mol | 13120 kJ/mol | 14500 kJ/mol | 26740 kJ/mol

Reactivity

| fluorine | rubidium term symbol | ^2P_(3/2) | ^2S_(1/2) atomic radius | 50 pm | 235 pm covalent radius | 57 pm | 220 pm van der Waals radius | 147 pm | (electronic ground state properties)

| fluorine | rubidium universe abundance | 4×10^-5 mass% | 1×10^-6 mass% solar abundance | 5×10^-5 mass% | 3×10^-6 mass% meteorite abundance | 0.0087 mass% | 3.2×10^-4 mass% crust abundance | 0.054 mass% | 0.006 mass% ocean abundance | 1.3×10^-4 mass% | 1.2×10^-5 mass% human abundance | 0.0037 mass% | 4.6×10^-4 mass% universe molar abundance | 3×10^-6 mol% | 1×10^-8 mol% solar molar abundance | 3×10^-6 mol% | 4×10^-8 mol% meteorite molar abundance | 0.0097 mol% | 7.8×10^-5 mol% ocean molar abundance | 4.2×10^-5 mol% | 8.7×10^-7 mol% crust molar abundance | 0.059 mol% | 0.0014 mol% human molar abundance | 0.0012 mol% | 3.4×10^-5 mol%

| fluorine | rubidium half-life | (stable) | (stable) stable isotopes | F-19 (100%) | Rb-85 (72.17%) nuclear spin | 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^+ | Rb-71: 5/2^- | Rb-72: 3^+ | Rb-73: 3/2^- | Rb-74: 0^+ | Rb-75: 3/2^- | Rb-76: 1^- | Rb-77: 3/2^- | Rb-78: 0^+ | Rb-79: 5/2^+ | Rb-80: 1^+ | Rb-81: 3/2^- | Rb-82: 1^+ | Rb-83: 5/2^- | Rb-84: 2^- | Rb-85: 5/2^- | Rb-86: 2^- | Rb-87: 3/2^- | Rb-88: 2^- | Rb-89: 3/2^- | Rb-90: 0^- | Rb-91: 3/2^- | Rb-92: 0^- | Rb-93: 5/2^- | Rb-94: 3^- | Rb-95: 5/2^- | Rb-96: 2^- | Rb-97: 3/2^+ | Rb-99: 5/2^+ | Rb-101: 3/2^+ unstable isotopes | 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) | Rb-87 (48.1 Gyr) | Rb-83 (86.2 days) | Rb-84 (33.1 days) | Rb-86 (18.642 days) | Rb-81 (4.57 h) | Rb-79 (22.9 min) | Rb-88 (17.773 min) | Rb-78 (17.66 min) | Rb-89 (15.15 min) | Rb-77 (226 s) | Rb-90 (158 s) | Rb-82 (76.38 s) | Rb-91 (58.4 s) | Rb-76 (36.5 s) | Rb-80 (33.4 s) | Rb-75 (19 s) | Rb-93 (5.84 s) | Rb-92 (4.492 s) | Rb-94 (2.702 s) | Rb-95 (377.5 ms) | Rb-96 (203 ms) | Rb-97 (169.9 ms) | Rb-98 (114 ms) | Rb-74 (64.76 ms) | Rb-99 (50.3 ms) | Rb-100 (51 ms) | Rb-102 (37 ms) | Rb-101 (32 ms) | Rb-72 (1.2 µs) | Rb-73 (30 ns) neutron cross-section | 0.0096 b | 0.38 b neutron mass absorption | 2×10^-5 m^2/kg | 3×10^-4 m^2/kg

| fluorine | rubidium CAS number | 7782-41-4 | 7440-17-7 PubChem CID number | 24524 | 5357696 Gmelin number | 16281 |