element types of erbium fluoride

erbium fluoride | element types

erbium | fluorine

Periodic table location

Images

| erbium | fluorine atomic symbol | Er | F atomic number | 68 | 9 short electronic configuration | [Xe]6s^24f^12 | [He]2s^22p^5 Aufbau diagram | 4f 6s | 2p 2s block | f | p group | | 17 period | 6 | 2 atomic mass | 167.259 u | 18.998403163 u half-life | (stable) | (stable)

| erbium | fluorine phase at STP | solid | gas melting point | 1497 °C | -219.6 °C boiling point | 2868 °C | -188.12 °C critical temperature | | 144.13 K critical pressure | | 5.172 MPa molar heat of fusion | 19.9 kJ/mol | 0.26 kJ/mol molar heat of vaporization | 285 kJ/mol | 3.27 kJ/mol specific heat at STP | 168 J/(kg K) | 824 J/(kg K) adiabatic index | | 7/5 Néel point | 82 K | (properties at standard conditions)

| erbium | fluorine density | 9.066 g/cm^3 | 0.001696 g/cm^3 liquid density | 8.86 g/cm^3 | molar volume | 18.45 cm^3/mol | 11200 cm^3/mol Mohs hardness | 2 (between gypsum and talc) | Vickers hardness | 589 MPa | Brinell hardness | 814 MPa | bulk modulus | 44 GPa | shear modulus | 28 GPa | Young's modulus | 70 GPa | Poisson ratio | 0.24 | tensile yield strength | 60 MPa | ultimate tensile strength | 136 MPa | refractive index | | 1.000195 sound speed | 2830 m/s | thermal expansion | 1.22×10^-5 K^(-1) | thermal conductivity | 15 W/(m K) | 0.0277 W/(m K) (properties at standard conditions)

| erbium | fluorine electrical type | conductor | resistivity | 8.6×10^-7 Ω m (ohm meters) | electrical conductivity | 1.2×10^6 S/m (siemens per meter) | magnetic type | paramagnetic | volume magnetic susceptibility | 0.0341788 | mass magnetic susceptibility | 3.77×10^-6 m^3/kg (cubic meters per kilogram) | molar magnetic susceptibility | 6.30566×10^-7 m^3/mol (cubic meters per mole) | Curie point | 32 K (kelvins) | Néel point | 82 K (kelvins) | color | (silver) | (colorless) refractive index | | 1.000195

| erbium | fluorine valence | 3 | 1 electronegativity | 1.24 | 3.98 electron affinity | 50 kJ/mol (kilojoules per mole) | 328 kJ/mol (kilojoules per mole) first ionization energy | 589.3 kJ/mol (kilojoules per mole) | 1681 kJ/mol (kilojoules per mole) ionization energies | 589.3 kJ/mol | 1150 kJ/mol | 2194 kJ/mol | 4120 kJ/mol | 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

Reactivity

| erbium | fluorine term symbol | ^3H_6 | ^2P_(3/2) atomic radius | 175 pm | 50 pm covalent radius | 189 pm | 57 pm van der Waals radius | | 147 pm (electronic ground state properties)

| erbium | fluorine universe abundance | 2×10^-7 mass% | 4×10^-5 mass% solar abundance | 1×10^-7 mass% | 5×10^-5 mass% meteorite abundance | 1.8×10^-5 mass% | 0.0087 mass% crust abundance | 3×10^-4 mass% | 0.054 mass% ocean abundance | 9×10^-11 mass% | 1.3×10^-4 mass% human abundance | | 0.0037 mass% universe molar abundance | 1×10^-9 mol% | 3×10^-6 mol% solar molar abundance | 9.9×10^-10 mol% | 3×10^-6 mol% meteorite molar abundance | 2×10^-6 mol% | 0.0097 mol% ocean molar abundance | 3.3×10^-12 mol% | 4.2×10^-5 mol% crust molar abundance | 3.7×10^-5 mol% | 0.059 mol% human molar abundance | | 0.0012 mol%

| erbium | fluorine half-life | (stable) | (stable) stable isotopes | Er-166 (33.503%) | Er-168 (26.978%) | Er-167 (22.869%) | Er-170 (14.91%) | Er-164 (1.601%) | Er-162 (0.139%) | F-19 (100%) nuclear spin | Er-143: 9/2^- | Er-144: 0^+ | Er-145: 1/2^+ | Er-146: 0^+ | Er-147: 11/2^- | Er-148: 0^+ | Er-149: 1/2^+ | Er-150: 0^+ | Er-151: 7/2^- | Er-152: 0^+ | Er-153: 7/2^- | Er-154: 0^+ | Er-155: 7/2^- | Er-156: 0^+ | Er-157: 3/2^- | Er-158: 0^+ | Er-159: 3/2^- | Er-160: 0^+ | Er-161: 3/2^- | Er-162: 0^+ | Er-163: 5/2^- | Er-164: 0^+ | Er-165: 5/2^- | Er-166: 0^+ | Er-167: 7/2^+ | Er-168: 0^+ | Er-169: 1/2^- | Er-170: 0^+ | Er-171: 5/2^- | Er-172: 0^+ | Er-173: 7/2^- | Er-174: 0^+ | Er-175: 9/2^+ | Er-176: 0^+ | Er-177: 1/2^- | 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^+ unstable isotopes | Er-169 (9.4 days) | Er-172 (49.3 h) | Er-160 (28.58 h) | Er-165 (10.4 h) | Er-171 (7.5167 h) | Er-161 (193 min) | Er-158 (137.3 min) | Er-163 (75 min) | Er-159 (37 min) | Er-156 (19.5 min) | Er-157 (18.65 min) | Er-155 (5.33 min) | Er-154 (224 s) | Er-174 (190 s) | Er-173 (84 s) | Er-175 (72 s) | Er-153 (37.1 s) | Er-151 (23.5 s) | Er-176 (20 s) | Er-150 (18.5 s) | Er-152 (10.3 s) | Er-148 (4.6 s) | Er-149 (4 s) | Er-177 (3 s) | Er-147 (2.5 s) | Er-146 (1.7 s) | Er-145 (900 ms) | Er-143 (200 ms) | Er-144 (200 ns) | 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) neutron cross-section | 165 b | 0.0096 b neutron mass absorption | 0.036 m^2/kg | 2×10^-5 m^2/kg