Atomic Spectroscopic Data for Elements Hydrogen Through Einsteinium

Approximately 12,000 spectral lines for neutral and singly-ionized atoms of all elements from hydrogen to einsteinium (Z = 1-99). The handbook compiles energy levels, ionization energies, wavelengths, line intensities, transition probabilities, and spectrum assignments. It is published by the National Institute of Standards and Technology and was last updated in July 2022.

Use Cases

• Calculate transition probabilities for specific spectral lines to model stellar atmospheres.
• Reference ionization energies and energy levels for atomic structure simulations in plasma physics.
• Identify elements in spectroscopic analysis using the compiled wavelength and line intensity data.
• Validate computational chemistry models against the handbook's spectrum assignments for neutral atoms.

Strengths

• Covers approximately 12,000 spectral lines, providing a broad reference for atomic spectroscopy.
• Includes data for all elements from hydrogen to einsteinium (Z = 1-99), ensuring comprehensive elemental coverage.
• Compiles multiple critical data types including energy levels, ionization energies, wavelengths, and transition probabilities.
• Provides bibliographic references for all compiled data, supporting traceability and verification.

Limitations

• Data is presented in HTML format, which may complicate automated extraction and analysis compared to structured formats like CSV.
• The scope is limited to neutral and singly-ionized atoms, excluding data for higher ionization states.
• The static handbook format may not be as easily updated or queried as a dynamic database.

Provenance

Source

National Institute of Standards and Technology (NIST).

Collection Method

Compilation and curation of published atomic spectroscopic data.

Freshness

Last updated July 2022.