ytterbium

ytterbium (chemical element)

Periodic table location

Image

atomic symbol | Yb atomic number | 70 short electronic configuration | [Xe]6s^24f^14 Aufbau diagram | 4f 6s block | f period | 6 atomic mass | 173.045 u (unified atomic mass units)

phase at STP | solid melting point | 819 °C (rank: 59th) boiling point | 1196 °C (rank: 67th) molar heat of fusion | 7.7 kJ/mol (rank: 55th) molar heat of vaporization | 160 kJ/mol (rank: 58th) specific heat at STP | 154 J/(kg K) (rank: 68th) (properties at standard conditions)

density | 6.57 g/cm^3 (rank: 54th) liquid density | 6.21 g/cm^3 molar volume | 26.34 cm^3/mol Vickers hardness | 206 MPa (rank: 42nd) Brinell hardness | 343 MPa (rank: 40th) bulk modulus | 31 GPa (rank: 49th) shear modulus | 9.9 GPa Young's modulus | 24 GPa (rank: 51st) Poisson ratio | 0.21 (rank: 49th) tensile yield strength | 66 MPa (rank: 21st) ultimate tensile strength | 72 MPa (rank: 30th) sound speed | 1590 m/s (rank: 58th) thermal expansion | 2.63×10^-5 K^(-1) (rank: 11th) thermal conductivity | 39 W/(m K) (rank: 39th) (properties at standard conditions)

electrical type | conductor resistivity | 2.8×10^-7 Ω m (ohm meters) electrical conductivity | 3.6×10^6 S/m (siemens per meter) magnetic type | paramagnetic volume magnetic susceptibility | 3.88×10^-5 mass magnetic susceptibility | 5.9×10^-9 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | 1.02×10^-9 m^3/mol (cubic meters per mole) color | (silver)

valence | 3 electron affinity | 50 kJ/mol (kilojoules per mole) first ionization energy | 603.4 kJ/mol (kilojoules per mole) ionization energies | 603.4 kJ/mol | 1174.8 kJ/mol | 2417 kJ/mol | 4203 kJ/mol

Reactivity

term symbol | ^1S_0 atomic radius | 175 pm covalent radius | 187 pm (electronic ground state properties)

(neutral ytterbium atomic spectrum)

universe abundance | 2×10^-7 mass% (rank: 51st) solar abundance | 1×10^-7 mass% (rank: 57th) meteorite abundance | 1.8×10^-5 mass% (rank: 55th) crust abundance | 2.8×10^-4 mass% (rank: 46th) ocean abundance | 8×10^-11 mass% (rank: 65th) universe molar abundance | 1×10^-9 mol% (rank: 59th) solar molar abundance | 9.9×10^-10 mol% (rank: 53rd) meteorite molar abundance | 2×10^-6 mol% (rank: 56th) ocean molar abundance | 2.9×10^-12 mol% (rank: 78th) crust molar abundance | 3.4×10^-5 mol% (rank: 51st)

half-life | (stable) stable isotopes | Yb-174 (31.83%) | Yb-172 (21.83%) | Yb-173 (16.13%) | Yb-171 (14.28%) | Yb-176 (12.76%) | Yb-170 (3.04%) | Yb-168 (0.13%) nuclear spin | Yb-148: 0^+ | Yb-150: 0^+ | Yb-151: 1/2^+ | Yb-152: 0^+ | Yb-153: 7/2^- | Yb-154: 0^+ | Yb-155: 7/2^- | Yb-156: 0^+ | Yb-157: 7/2^- | Yb-158: 0^+ | Yb-159: 5/2^- | Yb-160: 0^+ | Yb-161: 3/2^- | Yb-162: 0^+ | Yb-163: 3/2^- | Yb-164: 0^+ | Yb-165: 5/2^- | Yb-166: 0^+ | Yb-167: 5/2^- | Yb-168: 0^+ | Yb-169: 7/2^+ | Yb-170: 0^+ | Yb-171: 1/2^- | Yb-172: 0^+ | Yb-173: 5/2^- | Yb-174: 0^+ | Yb-175: 7/2^- | Yb-176: 0^+ | Yb-177: 9/2^+ | Yb-178: 0^+ | Yb-179: 1/2^- | Yb-180: 0^+ | Yb-181: 3/2^- unstable isotopes | Yb-169 (32.03 days) | Yb-175 (100.4 h) | Yb-166 (56.7 h) | Yb-177 (114.7 min) | Yb-164 (75.83 min) | Yb-178 (73 min) | Yb-162 (18.87 min) | Yb-167 (17.5 min) | Yb-163 (11.05 min) | Yb-165 (9.83 min) | Yb-179 (8 min) | Yb-160 (4.83 min) | Yb-161 (4.17 min) | Yb-180 (140 s) | Yb-159 (100 s) | Yb-158 (89.4 s) | Yb-181 (60 s) | Yb-157 (38.6 s) | Yb-156 (26.1 s) | Yb-153 (4.2 s) | Yb-152 (3.04 s) | Yb-155 (1.793 s) | Yb-151 (1.6 s) | Yb-149 (700 ms) | Yb-154 (409 ms) | Yb-148 (250 ms) | Yb-150 (200 ns) neutron cross-section | 35 b neutron mass absorption | 0.0076 m^2/kg

CAS number | 7440-64-4 PubChem CID number | 23992