Atomic Weights of the Elements 2011 with Updated Standard Values

Michael E. Wieser's biennial review of atomic-weight determinations resulted in changes to the standard atomic weights of five elements. The atomic weights of bromine, germanium, indium, magnesium, and mercury were updated, with bromine and magnesium assigned intervals reflecting natural variations. The dataset likely contains tabular data listing elements and their standard atomic weights.

Use Cases

• Calculate molecular masses based on updated standard atomic weights.
• Analyze natural isotopic variation in terrestrial materials based on the interval data for bromine and magnesium.
• Update reference databases or educational materials with the revised atomic weight values.
• Perform comparative analysis of atomic weight determinations over time.

Strengths

• The review is biennial, suggesting a regular update cycle.
• Provides specific updated values and intervals for five elements: bromine, germanium, indium, magnesium, and mercury.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Michael E. Wieser, Schlumberger (Ireland)

Collection Method

Biennial review of atomic-weight determinations and other cognate data.