Periodic Table of Elements https://periodic-table.pro/Element/Pu/enView online at https://periodic-table.pro Plutonium This plutonium pacemaker battery case is empty - fortunately. If it were full, possession of it anywhere outside a body would be a crime. 01. OVERVIEW Symbol Pu Atomic number 94 Atomic weight 244 Density 19.816 g/cm³ Melting point 640 °C Boiling point 3230 °C 02. THERMAL PROPERTIES Phase Solid Melting point 640 °C Boiling point 3230 °C Absolute melting point 913 K Absolute boiling point 3503 K Critical pressure N/A Critical temperature N/A Heat of fusion N/A Heat of vaporization 325 kJ/mol Heat of combustion N/A Specific heat N/A Adiabatic index N/A Neel point N/A Thermal conductivity 6 W/(m K) Thermal expansion N/A 03. PHYSICAL PROPERTIES Density 19.816 g/cm³ Density (liquid) 16.63 g/cm³ Molar volume 0.0000123132 Molar mass 244 u Brinell hardness N/A Mohs hardness N/A Vickers hardness N/A Bulk modulus N/A Shear modulus 43 GPa Young modulus 96 GPa Poisson ratio 0.21 Refractive index N/A Speed of sound 2260 m/s Thermal conductivity 6 W/(m K) Thermal expansion N/A 04. REACTIVITY Valence 6 Electronegativity 1.28 Electron affinity N/A Ionization energies 584.7 kJ/mol 05. SAFETY Autoignition point N/A Flashpoint N/A Heat of combustion N/A 06. CLASSIFICATIONS Alternate names N/A Names of allotropes N/A Block, Group, Period f, N/A, 7 Electron configuration [Rn]5f⁶7s² Color Silver Discovery 1940 in United States Gas phase N/A 07. ELECTRICAL PROPERTIES Electrical type Conductor Electrical conductivity 6.7×10⁵ S/m Resistivity 1.5×10⁶ m Ω Superconducting point N/A 08. MAGNETIC PROPERTIES Magnetic type Paramagnetic Curie point N/A Mass magnetic susceptibility 3.17×10⁸ m³/Kg Molar magnetic susceptibility 7.735×10⁹ m³/mol Volume magnetic susceptibility 0.0006282 09. ABUNDANCES In universe N/A In sun N/A In meteorites N/A In earth's crust N/A In oceans N/A In humans N/A 10. ATOMIC DIMENSIONS AND STRUCTURE Atomic radius N/A Covalent radius N/A Van der Waals radius N/A Crystal structure Simple Monoclinic Lattice angles π/2, 1.776571, π/2 Lattice constants 618.3, 482.2, 1096.3 pm Space group name P12₁/m1 Space group number 11 11. NUCLEAR PROPERTIES Half-Life 7.93×10⁷ y Lifetime 1.14×10⁸ y Decay mode Alpha emission Quantum numbers ⁷F₀ Neutron cross section 1.7 Neutron mass absorption N/A Known Isotopes ²²⁸Pu, ²²⁹Pu, ²³⁰Pu, ²³¹Pu, ²³²Pu, ²³³Pu, ²³⁴Pu, ²³⁵Pu, ²³⁶Pu, ²³⁷Pu, ²³⁸Pu, ²³⁹Pu, ²⁴⁰Pu, ²⁴¹Pu, ²⁴²Pu, ²⁴³Pu, ²⁴⁴Pu, ²⁴⁵Pu, ²⁴⁶Pu, ²⁴⁷Pu Stable Isotopes N/A Isotopic Abundances N/A https://periodic-table.pro/Element/Pu/enView online at https://periodic-table.pro.