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 - 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, visualize trends, or even test your elements knowledge by playing a periodic table game!
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 and is widely used in physics and other sciences.
Periodic table | Definition, Elements, Groups, Charges, Trends,
2024年11月10日 · periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number—i.e., the total number of protons in the atomic nucleus. When the chemical elements are thus arranged, there is a recurring pattern called the “periodic law” in their properties, in which elements in the same column (group ...
Periodic Table – Royal Society of Chemistry
Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
Periodic Table of Elements - American Chemical Society
The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number. Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol.
Interactive Periodic Table of the Elements
This is an interactive periodic table of the elements showing their atomic weights, atomic numbers, electron configurations, and state at room temperature.
Periodic Table of Elements - IUPAC | International Union of Pure …
By virtue of its work in relation with the chemical elements, IUPAC can dispense a periodic table that is up-to-date. IUPAC involvement covers various aspects of the table and data that it unveils, and several reports and recommendations, some quite recent, attest of that input.
Periodic table - Elements, Groups, Blocks | Britannica
2024年11月10日 · Periodic table - Elements, Groups, Blocks: The periodic table of the elements contains all of the chemical elements that have been discovered or made; they are arranged, in the order of their atomic numbers, in seven horizontal periods, with the lanthanoids (lanthanum, 57, to lutetium, 71) and the actinoids (actinium, 89, to lawrencium, 103 ...
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 wall-chart display. Access the Table: PDF without crop marks | PDF with crop marks