The goal of this project is to provide the scientific community with easily accessible high-quality atomic data and user-friendly, broadly-applicable modern relativistic codes to treat electronic correlations. The codes are capable of calculating a very broad range of atomic properties to answer the significant needs of atomic, plasma, and astrophysics communities. The development of the portal is supported by the National Science Foundation Office of Advanced Cyberinfrastructure (OAC) Award #1931339, Elements: Community portal for high-precision atomic physics data and computation.
The first version 1.0 included data for 12 monovalent atoms and ions: Li, Be+, Na, Mg+, K, Ca+, Rb, Sr+, Cs, Ba+, Fr, Ra+. The data are calculated using a high-precision linearized coupled-cluster method. All values include estimated uncertainties, see the method info below for explanation how the uncertainties are calculated. Data for 13 highly charged ions have been added in version 2.0.