NIST Atomic Weights and Isotopic Compositions with Relative Atomic Masses

Name: NIST Atomic Weights and Isotopic Compositions with Relative Atomic Masses
Published: 2026-03-14T01:43:41+08:00

NIST Chemistry WebBook2025-01-29 更新2026-03-14 收录

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The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.