Tantalum (Ta). Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of tantalum-181 (atomic numb
Tantalum (Ta). Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of tantalum-181 (atomic number: 73), the most common isotope of this element. The nucleus consists of 73 protons (red) and 108 neutrons (orange). 73 electrons (white) successively occupy available electron shells (rings). Tantalum is a transition metal in group 5, period 6, and the d-block of the periodic table. It has a melting point of 3017 degrees Celsius. The transition metal trends are due to electrons filling an inner d-subshell (here, within the 5th ring), shielding the outer (valence) electrons from the increasing nuclear charge.
Size: 5197px × 5008px
Photo credit: © CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: -atomic, -block, 5, 5d, 5d3, 6, 6s, 6s2, amu, atom, atomic, background, black, block, chemical, chemistry, configuration, data, diagram, electron, electronic, electrons, element, elemental, elements, energy, function, group, illustration, isotope, level, levels, metal, metallic, metals, neutron, neutrons, nuclear, nucleon, nucleons, nucleus, number, orbital, orbitals, period, physical, pm, properties, property, proton, quantum, radius, shell, shells, simple, solid, solids, structural, structure, subatomic, subshell, subshells, symbol, ta, tantalum, tantalum-181, transition, types, valence, wave, weight
