Periodic Table - Ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Periodic Table of Elements - IUPAC | International Union of Pure …
Periodic Table of Elements The latest release of the Periodic Table (dated 4 May 2022) includes the most recent abridged standard atomic weight values released by the IUPAC Commission …
Periodic Table of the Elements | NIST
2009年7月30日 · The periodic table contains NIST’s latest critically evaluated data for atomic properties of the elements. The PDF is suitable for high-resolution color printing for desk or …
Periodic Table of Elements - PubChem
Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, …
Periodic table - Wikipedia
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). It is an icon of chemistry …
IUPAC Periodic Table of the Elements. Created Date: 5/10/2022 2:54:33 PM ...
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NIST Periodic Table
2019年12月10日 · speed of light in vacuum 299 792 458 m s−1 Planck constant 6.626 070 15 x 10−34 J Hz −1 elementary charge electron energy proton mass fine-structure constant …
Periodic Table – Royal Society of Chemistry
Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
1 H hydrogen 1.008 [1.0078, 1.0082] 1 18 3 Li lithium 6.94 [6.938, 6.997] 4 Be beryllium 9.0122 11 Na sodium 22.990 12 Mg magnesium 24.305 [24.304, 24.307] 19 K potassium
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