A working reference for the modern chemist · quantitative properties, nucleosynthesis pathways, spectral lines, isotopes, oxidation states, and applied chemistry across all 118 elements.
T =20 °C
◇118 ELEMENTS◇
Solid Liquid GasPhase indicators activate when T ≠ 20 °C. Atomic weights per IUPAC 2021. Synthetic isotopes shown with mass number in brackets.
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