Thorium (Th). Diagram of the nuclear composition, electron configuration, chemical data, and valence (outer electron) orbitals of an atom of thorium-2
Thorium (Th). Diagram of the nuclear composition, electron configuration, chemical data, and valence (outer electron) orbitals of an atom of thorium-232 (atomic number: 90), the most stable isotope of this element. The nucleus consists of 90 protons (red) and 142 neutrons (orange). 90 electrons (white) successively occupy available electron shells (rings). Thorium is an actinide in period 7, and the f-block of the periodic table. Actinides are soft radioactive metals. Thorium-232, which is used as a nuclear fuel, contributes a large part of the Earth's internal heat. It has a half-life of 14 billion years. Its nucleus decays by emitting an alpha particle to form radium-228.
Size: 5197px × 5008px
Photo credit: © CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -atomic, -block, 6d, 6d2, 7, 7s, 7s2, actinide, actinides, actinoid, actinoids, amu, atom, atomic, background, black, block, chemical, chemistry, configuration, data, diagram, electron, electronic, electrons, element, elemental, elements, energy, function, illustration, isotope, level, levels, neutron, neutrons, nuclear, nucleon, nucleons, nucleus, number, orbital, orbitals, period, physical, pm, properties, property, proton, quantum, radioactive, radioisotope, radioisotopes, radius, shell, shells, simple, solid, solids, structural, structure, subatomic, subshell, subshells, symbol, thorium, thorium-232, types, valence, wave, weight
