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lead vs lanthanum vs praseodymium

Input interpretation

lead (chemical element) | lanthanum (chemical element) | praseodymium (chemical element)
lead (chemical element) | lanthanum (chemical element) | praseodymium (chemical element)

Periodic table location

Periodic table location
Periodic table location

Images

Images
Images

Basic elemental properties

 | lead | lanthanum | praseodymium atomic symbol | Pb | La | Pr atomic number | 82 | 57 | 59 short electronic configuration | [Xe]6s^24f^145d^106p^2 | [Xe]6s^25d^1 | [Xe]6s^24f^3 Aufbau diagram | 6p  5d  4f  6s | 5d  6s | 4f  6s  block | p | f | f group | 14 | |  period | 6 | 6 | 6 atomic mass | 207.2 u | 138.90547 u | 140.90766 u half-life | (stable) | (stable) | (stable)
| lead | lanthanum | praseodymium atomic symbol | Pb | La | Pr atomic number | 82 | 57 | 59 short electronic configuration | [Xe]6s^24f^145d^106p^2 | [Xe]6s^25d^1 | [Xe]6s^24f^3 Aufbau diagram | 6p 5d 4f 6s | 5d 6s | 4f 6s block | p | f | f group | 14 | | period | 6 | 6 | 6 atomic mass | 207.2 u | 138.90547 u | 140.90766 u half-life | (stable) | (stable) | (stable)

Thermodynamic properties

 | lead | lanthanum | praseodymium phase at STP | solid | solid | solid melting point | 327.46 °C | 920 °C | 931 °C boiling point | 1749 °C | 3464 °C | 3290 °C molar heat of fusion | 4.77 kJ/mol | 6.2 kJ/mol | 6.9 kJ/mol molar heat of vaporization | 178 kJ/mol | 400 kJ/mol | 330 kJ/mol specific heat at STP | 127 J/(kg K) | 195 J/(kg K) | 193 J/(kg K) (properties at standard conditions)
| lead | lanthanum | praseodymium phase at STP | solid | solid | solid melting point | 327.46 °C | 920 °C | 931 °C boiling point | 1749 °C | 3464 °C | 3290 °C molar heat of fusion | 4.77 kJ/mol | 6.2 kJ/mol | 6.9 kJ/mol molar heat of vaporization | 178 kJ/mol | 400 kJ/mol | 330 kJ/mol specific heat at STP | 127 J/(kg K) | 195 J/(kg K) | 193 J/(kg K) (properties at standard conditions)

Material properties

 | lead | lanthanum | praseodymium density | 11.34 g/cm^3 | 6.146 g/cm^3 | 6.64 g/cm^3 liquid density | 10.66 g/cm^3 | 5.94 g/cm^3 | 6.5 g/cm^3 molar volume | 18.27 cm^3/mol | 22.6 cm^3/mol | 21.22 cm^3/mol Mohs hardness | 1.5 (between talc and gypsum) | 2.5 (between gypsum and calcite) | 1.4 (between talc and gypsum) Vickers hardness | | 491 MPa | 400 MPa Brinell hardness | 38.3 MPa | 363 MPa | 481 MPa bulk modulus | 46 GPa | 28 GPa | 29 GPa shear modulus | 5.6 GPa | 14 GPa | 15 GPa Young's modulus | 16 GPa | 37 GPa | 37 GPa Poisson ratio | 0.44 | 0.28 | 0.28 tensile yield strength | | 125 MPa | 100 MPa ultimate tensile strength | 18 MPa | 130 MPa | 110 MPa sound speed | 1260 m/s | 2475 m/s | 2280 m/s thermal expansion | 2.89×10^-5 K^(-1) | 1.21×10^-5 K^(-1) | 6.7×10^-6 K^(-1) thermal conductivity | 35 W/(m K) | 13 W/(m K) | 13 W/(m K) (properties at standard conditions)
| lead | lanthanum | praseodymium density | 11.34 g/cm^3 | 6.146 g/cm^3 | 6.64 g/cm^3 liquid density | 10.66 g/cm^3 | 5.94 g/cm^3 | 6.5 g/cm^3 molar volume | 18.27 cm^3/mol | 22.6 cm^3/mol | 21.22 cm^3/mol Mohs hardness | 1.5 (between talc and gypsum) | 2.5 (between gypsum and calcite) | 1.4 (between talc and gypsum) Vickers hardness | | 491 MPa | 400 MPa Brinell hardness | 38.3 MPa | 363 MPa | 481 MPa bulk modulus | 46 GPa | 28 GPa | 29 GPa shear modulus | 5.6 GPa | 14 GPa | 15 GPa Young's modulus | 16 GPa | 37 GPa | 37 GPa Poisson ratio | 0.44 | 0.28 | 0.28 tensile yield strength | | 125 MPa | 100 MPa ultimate tensile strength | 18 MPa | 130 MPa | 110 MPa sound speed | 1260 m/s | 2475 m/s | 2280 m/s thermal expansion | 2.89×10^-5 K^(-1) | 1.21×10^-5 K^(-1) | 6.7×10^-6 K^(-1) thermal conductivity | 35 W/(m K) | 13 W/(m K) | 13 W/(m K) (properties at standard conditions)

Electromagnetic properties

 | lead | lanthanum | praseodymium electrical type | conductor | conductor | conductor resistivity | 2.1×10^-7 Ω m (ohm meters) | 6.1×10^-7 Ω m (ohm meters) | 7×10^-7 Ω m (ohm meters) electrical conductivity | 4.8×10^6 S/m (siemens per meter) | 1.6×10^6 S/m (siemens per meter) | 1.4×10^6 S/m (siemens per meter) magnetic type | diamagnetic | paramagnetic | paramagnetic volume magnetic susceptibility | -1.7×10^-5 | 6.761×10^-5 | 0.0028087 mass magnetic susceptibility | -1.5×10^-9 m^3/kg (cubic meters per kilogram) | 1.1×10^-8 m^3/kg (cubic meters per kilogram) | 4.23×10^-7 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -3.11×10^-10 m^3/mol (cubic meters per mole) | 1.528×10^-9 m^3/mol (cubic meters per mole) | 5.9604×10^-8 m^3/mol (cubic meters per mole) work function | 4.25 eV (Polycrystalline) | 3.5 eV (Polycrystalline) |  threshold frequency | 1.028×10^15 Hz (hertz) | 8.463×10^14 Hz (hertz) |  superconducting point | 7.2 K (kelvins) | 4.88 K (kelvins) |  color | (slate gray) | (silver) | (silver)
| lead | lanthanum | praseodymium electrical type | conductor | conductor | conductor resistivity | 2.1×10^-7 Ω m (ohm meters) | 6.1×10^-7 Ω m (ohm meters) | 7×10^-7 Ω m (ohm meters) electrical conductivity | 4.8×10^6 S/m (siemens per meter) | 1.6×10^6 S/m (siemens per meter) | 1.4×10^6 S/m (siemens per meter) magnetic type | diamagnetic | paramagnetic | paramagnetic volume magnetic susceptibility | -1.7×10^-5 | 6.761×10^-5 | 0.0028087 mass magnetic susceptibility | -1.5×10^-9 m^3/kg (cubic meters per kilogram) | 1.1×10^-8 m^3/kg (cubic meters per kilogram) | 4.23×10^-7 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -3.11×10^-10 m^3/mol (cubic meters per mole) | 1.528×10^-9 m^3/mol (cubic meters per mole) | 5.9604×10^-8 m^3/mol (cubic meters per mole) work function | 4.25 eV (Polycrystalline) | 3.5 eV (Polycrystalline) | threshold frequency | 1.028×10^15 Hz (hertz) | 8.463×10^14 Hz (hertz) | superconducting point | 7.2 K (kelvins) | 4.88 K (kelvins) | color | (slate gray) | (silver) | (silver)

Reactivity

 | lead | lanthanum | praseodymium valence | 4 | 3 | 4 electronegativity | 2.33 | 1.1 | 1.13 electron affinity | 35.1 kJ/mol (kilojoules per mole) | 48 kJ/mol (kilojoules per mole) | 50 kJ/mol (kilojoules per mole) first ionization energy | 715.6 kJ/mol (kilojoules per mole) | 538.1 kJ/mol (kilojoules per mole) | 527 kJ/mol (kilojoules per mole) ionization energies | 715.6 kJ/mol | 1450.5 kJ/mol | 3081.5 kJ/mol | 4083 kJ/mol | 6640 kJ/mol | 538.1 kJ/mol | 1067 kJ/mol | 1850.3 kJ/mol | 4819 kJ/mol | 5940 kJ/mol | 527 kJ/mol | 1020 kJ/mol | 2086 kJ/mol | 3761 kJ/mol | 5551 kJ/mol
| lead | lanthanum | praseodymium valence | 4 | 3 | 4 electronegativity | 2.33 | 1.1 | 1.13 electron affinity | 35.1 kJ/mol (kilojoules per mole) | 48 kJ/mol (kilojoules per mole) | 50 kJ/mol (kilojoules per mole) first ionization energy | 715.6 kJ/mol (kilojoules per mole) | 538.1 kJ/mol (kilojoules per mole) | 527 kJ/mol (kilojoules per mole) ionization energies | 715.6 kJ/mol | 1450.5 kJ/mol | 3081.5 kJ/mol | 4083 kJ/mol | 6640 kJ/mol | 538.1 kJ/mol | 1067 kJ/mol | 1850.3 kJ/mol | 4819 kJ/mol | 5940 kJ/mol | 527 kJ/mol | 1020 kJ/mol | 2086 kJ/mol | 3761 kJ/mol | 5551 kJ/mol
Reactivity
Reactivity

Atomic properties

 | lead | lanthanum | praseodymium term symbol | ^3P_0 | ^2D_(3/2) | ^4I_(9/2) atomic radius | 180 pm | 195 pm | 185 pm covalent radius | 146 pm | 207 pm | 203 pm van der Waals radius | 202 pm | |  (electronic ground state properties)
| lead | lanthanum | praseodymium term symbol | ^3P_0 | ^2D_(3/2) | ^4I_(9/2) atomic radius | 180 pm | 195 pm | 185 pm covalent radius | 146 pm | 207 pm | 203 pm van der Waals radius | 202 pm | | (electronic ground state properties)

Abundances

 | lead | lanthanum | praseodymium universe abundance | 1×10^-6 mass% | 2×10^-7 mass% | 2×10^-7 mass% solar abundance | 1×10^-6 mass% | 2×10^-7 mass% | 1×10^-7 mass% meteorite abundance | 1.4×10^-4 mass% | 2.8×10^-5 mass% | 9.8×10^-6 mass% crust abundance | 9.9×10^-4 mass% | 0.0034 mass% | 8.6×10^-4 mass% ocean abundance | 3×10^-9 mass% | 3.4×10^-10 mass% | 6×10^-11 mass% human abundance | 1.7×10^-4 mass% | |  universe molar abundance | 6×10^-9 mol% | 2×10^-9 mol% | 2×10^-9 mol% solar molar abundance | 7×10^-9 mol% | 9.9×10^-10 mol% | 5×10^-10 mol% meteorite molar abundance | 1×10^-5 mol% | 4×10^-6 mol% | 1×10^-6 mol% ocean molar abundance | 9×10^-11 mol% | 1.5×10^-11 mol% | 2.6×10^-12 mol% crust molar abundance | 9.9×10^-5 mol% | 5×10^-4 mol% | 1.3×10^-4 mol% human molar abundance | 5×10^-6 mol% | |
| lead | lanthanum | praseodymium universe abundance | 1×10^-6 mass% | 2×10^-7 mass% | 2×10^-7 mass% solar abundance | 1×10^-6 mass% | 2×10^-7 mass% | 1×10^-7 mass% meteorite abundance | 1.4×10^-4 mass% | 2.8×10^-5 mass% | 9.8×10^-6 mass% crust abundance | 9.9×10^-4 mass% | 0.0034 mass% | 8.6×10^-4 mass% ocean abundance | 3×10^-9 mass% | 3.4×10^-10 mass% | 6×10^-11 mass% human abundance | 1.7×10^-4 mass% | | universe molar abundance | 6×10^-9 mol% | 2×10^-9 mol% | 2×10^-9 mol% solar molar abundance | 7×10^-9 mol% | 9.9×10^-10 mol% | 5×10^-10 mol% meteorite molar abundance | 1×10^-5 mol% | 4×10^-6 mol% | 1×10^-6 mol% ocean molar abundance | 9×10^-11 mol% | 1.5×10^-11 mol% | 2.6×10^-12 mol% crust molar abundance | 9.9×10^-5 mol% | 5×10^-4 mol% | 1.3×10^-4 mol% human molar abundance | 5×10^-6 mol% | |