Journal ArticleDOI
SCF Dirac–Slater Calculations of the Translawrencium Elements
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In this paper, total energies of several configurations of the elements in the range of atomic numbers 104-132 were computed using the Liberman-Waber-Cromer program to determine the probable ground state configurations.Abstract:
Total energies of several configurations of the elements in the range of atomic numbers 104–132 were computed using the Liberman–Waber–Cromer program to determine the probable ground‐state configurations. These calculations provide evidence for eka‐actinium (s2d) at 121, partial filling of the 6f shell through 124 and beginning of a new superactinide series at element 125, in which the 5g shells fill progressively as the atomic number increases.read more
Citations
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Journal ArticleDOI
Relativistic calculation of atomic structures.
TL;DR: In this article, the state of the art in relativistic calculation of atomic structures is surveyed and the theory is modelled on the practice in non-relativistic calculations, using many-particle wave functions built from Dirac central field spinors.
Book ChapterDOI
Relativistic Quantum Chemistry
TL;DR: In this article, a summary of the relativistic calculations on multielectron or multicenter problems is provided, including relativism effects on the chemical properties of the periodic system of elements.
Journal ArticleDOI
Electronic Structure and Properties of the Transactinides and Their Compounds.
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The Continuation of the Periodic Table up to Z = 172. The Chemistry of Superheavy Elements*
TL;DR: The chemical elements up to Z = 172 were calculated with a relativistic Hartree-Fock-Slater program taking into account the effect of the extended nucleus as mentioned in this paper.
Journal ArticleDOI
Extinct superheavy element in the Allende meteorite
TL;DR: In this article, the authors conducted radiochemical neutron activation analysis of seven Allende samples for 26 trace elements and found that the superheavy element was found to reside mainly in a rare mineral (probably a Fe, Ni, Cr, Al-sulfide), comprising only 0.04% of the meteorite.
References
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Journal ArticleDOI
A Simplification of the Hartree-Fock Method
TL;DR: In this article, the Hartree-Fock equations can be regarded as ordinary Schrodinger equations for the motion of electrons, each electron moving in a slightly different potential field, which is computed by electrostatics from all the charges of the system, positive and negative, corrected by the removal of an exchange charge, equal in magnitude to one electron, surrounding the electron whose motion is being investigated.
Journal ArticleDOI
Shell effects in nuclear masses and deformation energies
TL;DR: In this paper, the authors calculate the shell-model correction to the liquid drop energy of the nucleus as a function of the occupation number and deformation, and show a strong correlation between the shell correction and nucleon level density at the Fermi energy.
Journal ArticleDOI
Nuclear masses and deformations
W.D. Myers,W.J. Swiatecki +1 more
TL;DR: In this article, a semi-empirical theory of nuclear masses and deformations is presented, where the potential energy of a nucleus, considered as a function of N, Z and the nuclear shape, is given by the liquid-drop model, modified by a shell correction.
Journal ArticleDOI
Self-Consistent-Field Dirac-Slater Wave Functions for Atoms and Ions. I. Comparison with Previous Calculations
Journal ArticleDOI
Relativistic Self-Consistent Field Calculation for Mercury
TL;DR: In this article, a solution of the relativistic self-consistent field equations for Hg$ √ 2 + √ n and neutral Hg was given. The results were compared with those of previous non-relativistic work, and the changes found to be substantial.