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(Please note: some content may not be complete on the beta site.).
|Atomic weights were updated. See the Atomic Weights and Isotopic Compositions of the Elements database.|
|The Spectral Data for the Chandra X-Ray Observatory database has been discontinued; the contents of the Chandra database have been completely superseded by the NIST Atomic Spectra Database (ASD). Therefore, the links in this database (from elements Ne, Mg, Si, & S) to the Chandra database have been removed.|
|Atomic weights and ionization energies were added/updated for several elements. See the Atomic Weights and Isotopic Compositions of the Elements database and the Ground Levels and Ionization Energies for the Neutral Atoms database for details. Also, elements 1 - 118 are included in the database and the design of the graphical interface was modified.|
|Updated the links for the "Atomic Spectra Database" to access the new version, Version 3.0.|
|Added access to two new, online databases: "Energy Levels of Hydrogen and Deuterium" for H and "Potential Energy Surface Database of Group II Dimer Molecules" for Mg, Ca, Sr & Ba; and added access to "Electron-Impact Cross Sections for Ionization and Excitation" for Li, B, C, N, O, Al, Ga & In.|
|Added access to three new, online databases: "Handbook of Basic Atomic Spectroscopic Data" (Z = 1 to 99), "Spectral Data for the Chandra X-ray Observatory" (S, Si, Mg, Ne), & "X-ray Transition Energies" (Z = 10 to 100). Added access to "Radionuclide Half-Life Measurements" for P and Ru. Additionally, there were minor changes made to some of the values of the atomic weights and the ionization energies.|
|Activated elements Z = 105-112, 114, and 116; and added access to atomic masses for elements without isotopic abundance. (Access to atomic masses for elements with isotopic abundance was previously available.)|
|Minor interface improvements, better page layout.|