Input interpretation
radioactive elements
Members
actinium | americium | astatine | berkelium | bohrium | californium | copernicium | curium | darmstadtium | dubnium | einsteinium | fermium | francium | hassium | lawrencium | meitnerium | mendelevium | neptunium | nobelium | plutonium | polonium | promethium | protactinium | radium | radon | roentgenium | rutherfordium | seaborgium | technetium | thorium | livermorium | oganesson | moscovium | flerovium | tennessine | nihonium | uranium (total: 37)
Periodic table location
Periodic table location
Images
Images
Basic elemental properties
atomic symbol | all | Ac | Am | At | Bh | Bk | Cf | Cm | Cn | Db | Ds | Es | Fl | Fm | Fr | Hs | Lr | Lv | Mc | Md | Mt | Nh | No | Np | Og | Pa | Pm | Po | Pu | Ra | Rf | Rg | Rn | Sg | Tc | Th | Ts | U atomic number | median | 100 | highest | 118 (oganesson) | lowest | 43 (technetium) | distribution | block | all | d | f | p | s group | all | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 period | all | 5 | 6 | 7 atomic mass | median | 257 u | highest | 294 u (oganesson) | lowest | 98 u (technetium) | distribution | half-life | median | 13 h | highest | 14.06 Gyr (thorium) | lowest | 5 ms (oganesson) | distribution |
Thermodynamic properties
phase at STP | all | gas | solid melting point | median | 1050 °C | highest | 2157 °C (technetium) | lowest | -71 °C (radon) | distribution | boiling point | median | 3200 °C | highest | 4820 °C (thorium) | lowest | -61.7 °C (radon) | distribution | molar heat of fusion | median | 12 kJ/mol | highest | 23 kJ/mol (technetium) | lowest | 2 kJ/mol (francium) | distribution | molar heat of vaporization | median | 325 kJ/mol | highest | 550 kJ/mol (technetium) | lowest | 17 kJ/mol (radon) | distribution | specific heat at STP | median | 99.1 J/(kg K) | highest | 120 J/(kg K) (actinium) | lowest | 63 J/(kg K) (technetium) | distribution | (properties at standard conditions)
Material properties
density | median | 13.51 g/cm^3 | highest | 20.45 g/cm^3 (neptunium) | lowest | 0.00973 g/cm^3 (radon) | distribution | molar volume | median | 17.8 cm^3/mol | highest | 22800 cm^3/mol (radon) | lowest | 8.5 cm^3/mol (technetium) Vickers hardness | all | 350 MPa | 1960 MPa Brinell hardness | all | 400 MPa | 2400 MPa bulk modulus | median | 54 GPa | highest | 100 GPa (uranium) | lowest | 33 GPa (promethium) | distribution | shear modulus | median | 37 GPa | highest | 111 GPa (uranium) | lowest | 18 GPa (promethium) | distribution | Young's modulus | median | 88 GPa | highest | 208 GPa (uranium) | lowest | 46 GPa (promethium) | distribution | Poisson ratio | all | 0.21 | 0.23 | 0.27 | 0.28 tensile yield strength | median | 210 MPa | highest | 1.29 GPa (technetium) | lowest | 70 MPa (promethium) ultimate tensile strength | all | 160 MPa | 219 MPa | 400 MPa | 1.51 GPa sound speed | median | 2490 m/s | highest | 3155 m/s (uranium) | lowest | 2260 m/s (plutonium) thermal expansion | median | 1.1×10^-5 K^(-1) | highest | 1.39×10^-5 K^(-1) (uranium) | lowest | 1.1×10^-5 K^(-1) (promethium) thermal conductivity | median | 12 W/(m K) | highest | 54 W/(m K) (thorium) | lowest | 0.00361 W/(m K) (radon) | distribution | (properties at standard conditions)
Electromagnetic properties
resistivity | median | 4.3×10^-7 Ω m (ohm meters) | highest | 1.5×10^-6 Ω m (ohm meters) (plutonium) | lowest | 1.5×10^-7 Ω m (ohm meters) (thorium) | distribution | electrical conductivity | median | 2.3×10^6 S/m (siemens per meter) | highest | 6.7×10^6 S/m (siemens per meter) (thorium) | lowest | 670000 S/m (siemens per meter) (plutonium) | distribution | volume magnetic susceptibility | median | 4.55×10^-4 | highest | 7.04×10^-4 (americium) | lowest | 8.4×10^-5 (thorium) | distribution | mass magnetic susceptibility | median | 3.21×10^-8 m^3/kg (cubic meters per kilogram) | highest | 5.15×10^-8 m^3/kg (cubic meters per kilogram) (americium) | lowest | 7.2×10^-9 m^3/kg (cubic meters per kilogram) (thorium) | distribution | molar magnetic susceptibility | median | 6.32×10^-9 m^3/mol (cubic meters per mole) | highest | 1.251×10^-8 m^3/mol (cubic meters per mole) (americium) | lowest | 1.7×10^-9 m^3/mol (cubic meters per mole) (thorium) | distribution | work function | all | 3.4 eV | (3.63 to 3.9) eV superconducting point | median | 1.4 K (kelvins) | highest | 7.8 K (kelvins) (technetium) | lowest | 0.6 K (kelvins) (americium)
Reactivity
valence | median | 4 | highest | 7 (astatine and bohrium) | lowest | 1 (francium) | distribution | electronegativity | median | 1.3 | highest | 2.2 (astatine) | lowest | 0.7 (francium and radium) | distribution | electron affinity | median | 53 kJ/mol (kilojoules per mole) | highest | 270.1 kJ/mol (kilojoules per mole) (astatine) | lowest | 0 kJ/mol (kilojoules per mole) (radon) | distribution | first ionization energy | median | 601 kJ/mol (kilojoules per mole) | highest | 1037 kJ/mol (kilojoules per mole) (radon) | lowest | 380 kJ/mol (kilojoules per mole) (francium) | distribution |