Periodic Table - Ptable
网页Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Periodic table - Wikipedia
网页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 of Elements - PubChem
网页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 – Royal Society of Chemistry
网页Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
元素周期表 - Ptable
网页对没有稳定同位素的元素，其同位素中半衰期最长的重量以括号标示。. 交互式的周期表在动态的布局里展现名字,电子,曲线,轨道,同位素,搜索.全面的描述.
Periodic table | Definition, Elements, Groups, Charges, Trends,
网页5 天之前 — Periodic table, in chemistry, the organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called the ‘periodic law’ in their properties, in which elements in the same column (group) have similar properties.
The periodic table of the elements by WebElements
网页The periodic table is an arrangment of the chemical elements ordered by atomic number so that periodic properties of the elements (chemical periodicity) are made clear. Explore the chemical elements through this periodic table. The standard form of the periodic table shown here includes periods (shown horizontally) and groups (shown vertically).
Periodic Table of Elements - IUPAC | International Union of Pure …
网页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 on Isotopic Abundances and Atomic Weights (CIAAW), compiled as part of the 2021 Table of Standard Atomic Weights 2021. For elements that lack isotopes with a ...
Periodic Table of Elements - American Chemical Society
网页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.
Periodic Table of Elements - BYJU'S
网页The periodic table is an arrangement of all the elements known to man in accordance with their increasing atomic number and recurring chemical properties. They are assorted in a tabular arrangement wherein a row is a period and a column is a group.