name of europium

europium (chemical element)

Periodic table location

Image

atomic symbol | Eu atomic number | 63 short electronic configuration | [Xe]6s^24f^7 Aufbau diagram | 4f 6s block | f period | 6 atomic mass | 151.964 u (unified atomic mass units)

phase at STP | solid melting point | 822 °C (rank: 58th) boiling point | 1527 °C (rank: 62nd) molar heat of fusion | 9.2 kJ/mol (rank: 49th) molar heat of vaporization | 175 kJ/mol (rank: 55th) specific heat at STP | 182 J/(kg K) (rank: 61st) Néel point | 90.5 K (properties at standard conditions)

density | 5.244 g/cm^3 (rank: 62nd) liquid density | 5.13 g/cm^3 molar volume | 28.98 cm^3/mol Mohs hardness | 3.1 (between calcite and fluorite) Vickers hardness | 167 MPa (rank: 43rd) bulk modulus | 8.3 GPa (rank: 60th) shear modulus | 7.9 GPa Young's modulus | 18 GPa (rank: 53rd) Poisson ratio | 0.15 (rank: 53rd) thermal expansion | 3.5×10^-5 K^(-1) (rank: 5th) thermal conductivity | 14 W/(m K) (rank: 61st) (properties at standard conditions)

electrical type | conductor resistivity | 9×10^-7 Ω m (ohm meters) electrical conductivity | 1.1×10^6 S/m (siemens per meter) magnetic type | paramagnetic volume magnetic susceptibility | 0.0014473 mass magnetic susceptibility | 2.76×10^-7 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 4.1942×10^-8 m^3/mol (cubic meters per mole) Néel point | 90.5 K (kelvins) work function | 2.5 eV (Polycrystalline) threshold frequency | 6.045×10^14 Hz (hertz) superconducting point | 1.8 K (kelvins) color | (silver)

valence | 3 electron affinity | 50 kJ/mol (kilojoules per mole) first ionization energy | 547.1 kJ/mol (kilojoules per mole) ionization energies | 547.1 kJ/mol | 1085 kJ/mol | 2404 kJ/mol | 4120 kJ/mol

Reactivity

term symbol | ^8S_(7/2) atomic radius | 185 pm covalent radius | 198 pm (electronic ground state properties)

(neutral europium atomic spectrum)

universe abundance | 5×10^-8 mass% (rank: 71st) solar abundance | 5×10^-8 mass% (rank: 68th) meteorite abundance | 5.9×10^-6 mass% (rank: 68th) crust abundance | 1.8×10^-4 mass% (rank: 52nd) ocean abundance | 1.3×10^-11 mass% (rank: 75th) universe molar abundance | 4×10^-10 mol% (rank: 68th) solar molar abundance | 4×10^-10 mol% (rank: 70th) meteorite molar abundance | 8.1×10^-7 mol% (rank: 68th) ocean molar abundance | 5×10^-6 mol% (rank: 25th) crust molar abundance | 2.4×10^-5 mol% (rank: 53rd)

half-life | (stable) stable isotopes | Eu-153 (52.19%) | Eu-151 (47.81%) nuclear spin | Eu-130: 1^+ | Eu-131: 3/2^+ | Eu-133: 11/2^- | Eu-135: 11/2^- | Eu-136: 7^+ | Eu-137: 11/2^- | Eu-138: 6^- | Eu-139: 11/2^- | Eu-140: 1^+ | Eu-141: 5/2^+ | Eu-142: 1^+ | Eu-143: 5/2^+ | Eu-144: 1^+ | Eu-145: 5/2^+ | Eu-146: 4^- | Eu-147: 5/2^+ | Eu-148: 5^- | Eu-149: 5/2^+ | Eu-150: 5^- | Eu-151: 5/2^+ | Eu-152: 3^- | Eu-153: 5/2^+ | Eu-154: 3^- | Eu-155: 5/2^+ | Eu-156: 0^+ | Eu-157: 5/2^+ | Eu-158: 1^- | Eu-159: 5/2^+ | Eu-160: 1^- | Eu-161: 5/2^+ | Eu-163: 5/2^+ | Eu-165: 5/2^+ | Eu-167: 5/2^+ unstable isotopes | Eu-150 (36.9 yr) | Eu-152 (13.537 yr) | Eu-154 (8.593 yr) | Eu-155 (4.753 yr) | Eu-149 (93.1 days) | Eu-148 (54.5 days) | Eu-147 (24.1 days) | Eu-156 (15.19 days) | Eu-145 (142 h) | Eu-146 (111 h) | Eu-157 (15.181 h) | Eu-158 (45.83 min) | Eu-159 (18.1 min) | Eu-143 (155 s) | Eu-141 (40.7 s) | Eu-160 (38 s) | Eu-161 (26 s) | Eu-139 (17.9 s) | Eu-138 (12.1 s) | Eu-137 (11 s) | Eu-162 (10.6 s) | Eu-144 (10.2 s) | Eu-163 (7.8 s) | Eu-164 (4.2 s) | Eu-136 (3.3 s) | Eu-165 (2.3 s) | Eu-142 (2.34 s) | Eu-140 (1.51 s) | Eu-135 (1.5 s) | Eu-134 (500 ms) | Eu-166 (400 ms) | Eu-167 (200 ms) | Eu-133 (200 ms) | Eu-132 (100 ms) | Eu-131 (17.8 ms) | Eu-130 (900 µs) neutron cross-section | 4570 b neutron mass absorption | 0.6 m^2/kg

CAS number | 7440-53-1 PubChem CID number | 23981