period 6 elements

period 6 elements

cesium | barium | lanthanum | cerium | praseodymium | neodymium | promethium | samarium | europium | gadolinium | terbium | dysprosium | holmium | erbium | thulium | ytterbium | lutetium | hafnium | tantalum | tungsten | rhenium | osmium | iridium | platinum | gold | mercury | thallium | lead | bismuth | polonium | astatine | radon (total: 32)

Periodic table location

Images

atomic symbol | all | At | Au | Ba | Bi | Ce | Cs | Dy | Er | Eu | Gd | Hf | Hg | Ho | Ir | La | Lu | Nd | Os | Pb | Pm | Po | Pr | Pt | Re | Rn | Sm | Ta | Tb | Tl | Tm | W | Yb atomic number | median | 70.5 | highest | 86 (radon) | lowest | 55 (cesium) | 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 | 6 atomic mass | median | 174.006 u | highest | 222 u (radon) | lowest | 132.90545196 u (cesium) | distribution | half-life | median | 17.7 yr | highest | 1.9×10^19 yr (bismuth) | lowest | 8.1 h (astatine)

phase at STP | all | gas | liquid | solid melting point | median | 1068 °C | highest | 3422 °C (tungsten) | lowest | -71 °C (radon) | distribution | boiling point | median | 2868 °C | highest | 5596 °C (rhenium) | lowest | -61.7 °C (radon) | distribution | critical temperature | median | 1750 K | highest | 1938 K (cesium) | lowest | 377 K (radon) critical pressure | median | 9.4 MPa | highest | 172 MPa (mercury) | lowest | 6.28 MPa (radon) molar heat of fusion | median | 10 kJ/mol | highest | 36 kJ/mol (tantalum) | lowest | 2.09 kJ/mol (cesium) | distribution | molar heat of vaporization | median | 285 kJ/mol | highest | 800 kJ/mol (tungsten) | lowest | 17 kJ/mol (radon) | distribution | specific heat at STP | median | 154 J/(kg K) | highest | 242 J/(kg K) (cesium) | lowest | 93.65 J/(kg K) (radon) | distribution | Néel point | median | 90.5 K | highest | 230 K (terbium) | lowest | 12.5 K (cerium) | distribution | (properties at standard conditions)

density | median | 9.066 g/cm^3 | highest | 22.59 g/cm^3 (osmium) | lowest | 0.00973 g/cm^3 (radon) | distribution | liquid density | median | 8.71 g/cm^3 | highest | 20 g/cm^3 (osmium) | lowest | 1.843 g/cm^3 (cesium) | distribution | molar volume | median | 19 cm^3/mol | highest | 22800 cm^3/mol (radon) | lowest | 8.421 cm^3/mol (osmium) Mohs hardness | median | 2.4 | highest | 7.5 (between quartz and topaz) (tungsten) | lowest | 0.2 (between talc and gypsum) (cesium) | distribution | Vickers hardness | all | 167 MPa | 206 MPa | 216 MPa | 270 MPa | 343 MPa | 400 MPa | 412 MPa | 481 MPa | 491 MPa | 520 MPa | 540 MPa | 549 MPa | 570 MPa | 589 MPa | 863 MPa | 873 MPa | 1160 MPa | 1760 MPa | 2450 MPa | 3430 MPa | 4140 MPa Brinell hardness | all | 0.14 MPa | 26.4 MPa | 38.3 MPa | 94.2 MPa | 265 MPa | 343 MPa | 363 MPa | 392 MPa | 412 MPa | 441 MPa | 471 MPa | 481 MPa | 500 MPa | 677 MPa | 746 MPa | 800 MPa | 814 MPa | 893 MPa | 1320 MPa | 1670 MPa | 1700 MPa | 2450 MPa | 2570 MPa | 3920 MPa bulk modulus | median | 39 GPa | highest | 370 GPa (rhenium) | lowest | 1.6 GPa (cesium) | distribution | shear modulus | median | 22 GPa | highest | 222 GPa (osmium) | lowest | 2.8 GPa (thallium) | distribution | Young's modulus | median | 56 GPa | highest | 528 GPa (iridium) | lowest | 1.7 GPa (cesium) | distribution | Poisson ratio | all | 0.15 | 0.21 | 0.23 | 0.24 | 0.25 | 0.26 | 0.27 | 0.28 | 0.3 | 0.33 | 0.34 | 0.37 | 0.38 | 0.44 | 0.45 tensile yield strength | median | 90 MPa | highest | 750 MPa (tungsten) | lowest | 60 MPa (4 elements) | distribution | ultimate tensile strength | all | 7 MPa | 18 MPa | 72 MPa | 100 MPa | 110 MPa | 120 MPa | 130 MPa | 136 MPa | 138 MPa | 140 MPa | 160 MPa | 170 MPa | 190 MPa | 246 MPa | 259 MPa | 0.98 GPa sound speed | median | 2547 m/s | highest | 5174 m/s (tungsten) | lowest | 818 m/s (thallium) | distribution | thermal expansion | median | 1.08×10^-5 K^(-1) | highest | 1.81×10^-4 K^(-1) (mercury) | lowest | 4.5×10^-6 K^(-1) (tungsten) | distribution | thermal conductivity | median | 16 W/(m K) | highest | 320 W/(m K) (gold) | lowest | 0.00361 W/(m K) (radon) | distribution | (properties at standard conditions)

resistivity | median | 5.8×10^-7 Ω m (ohm meters) | highest | 1.3×10^-6 Ω m (ohm meters) (gadolinium and bismuth) | lowest | 2.2×10^-8 Ω m (ohm meters) (gold) | distribution | electrical conductivity | median | 1.7×10^6 S/m (siemens per meter) | highest | 4.5×10^7 S/m (siemens per meter) (gold) | lowest | 770000 S/m (siemens per meter) (gadolinium and bismuth) | distribution | volume magnetic susceptibility | median | 8.84×10^-5 | highest | 0.1117784 (terbium) | lowest | -1.7×10^-4 (bismuth) | distribution | mass magnetic susceptibility | median | 1.07×10^-8 m^3/kg (cubic meters per kilogram) | highest | 1.36×10^-5 m^3/kg (cubic meters per kilogram) (terbium) | lowest | -1.7×10^-8 m^3/kg (cubic meters per kilogram) (bismuth) | distribution | molar magnetic susceptibility | median | 1.528×10^-9 m^3/mol (cubic meters per mole) | highest | 2.161385×10^-6 m^3/mol (cubic meters per mole) (terbium) | lowest | -3.6×10^-9 m^3/mol (cubic meters per mole) (bismuth) | distribution | Curie point | median | 60 K (kelvins) | highest | 292 K (kelvins) (gadolinium) | lowest | 20 K (kelvins) (holmium) | distribution | Néel point | median | 90.5 K (kelvins) | highest | 230 K (kelvins) (terbium) | lowest | 12.5 K (kelvins) (cerium) | distribution | work function | all | 1.95 eV | 2.5 eV | 2.52 eV | 2.7 eV | 2.9 eV | 3 eV | 3.2 eV | 3.3 eV | 3.5 eV | 3.84 eV | 3.9 eV | 4.25 eV | 4.34 eV | 4.47 eV | 4.72 eV | 5.93 eV | (4 to 4.8) eV | (4.32 to 5.22) eV | (5 to 5.76) eV | (5.12 to 5.93) eV | (5.31 to 5.47) eV superconducting point | median | 1.7 K (kelvins) | highest | 7.2 K (kelvins) (lead) | lowest | 0.015 K (kelvins) (tungsten) | distribution | color | all |

valence | median | 3 | highest | 7 (rhenium and astatine) | lowest | 1 (cesium) | distribution | electronegativity | median | 1.3 | highest | 2.54 (gold) | lowest | 0.79 (cesium) | distribution | electron affinity | median | 50 kJ/mol (kilojoules per mole) | highest | 270.1 kJ/mol (kilojoules per mole) (astatine) | lowest | 0 kJ/mol (kilojoules per mole) (3 elements) | distribution | first ionization energy | median | 595 kJ/mol (kilojoules per mole) | highest | 1037 kJ/mol (kilojoules per mole) (radon) | lowest | 375.7 kJ/mol (kilojoules per mole) (cesium) | distribution |