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List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [ 1]
List of chemical elements. ^ Helium melting point: helium does not solidify at a pressure of 1 bar (0.99 atm). Helium can only solidify at pressures above 25 atmosphere. ^ Arsenic: element sublimes at one atmosphere of pressure.
The periodic table is a tabular arrangement of the chemical elements, organized by their atomic number, electron configuration, and chemical properties. It is a useful tool for understanding the patterns and trends of the elements and their interactions. Learn more about the history, structure, and significance of the periodic table on Wikipedia.
Chemical symbol. The periodic table, elements being denoted by their symbols. Chemical symbols are the abbreviations used in chemistry, mainly for chemical elements; but also for functional groups, chemical compounds, and other entities. Element symbols for chemical elements, also known as atomic symbols, normally consist of one or two letters ...
This is a documentation subpage for Template:List of chemical elements. It may contain usage information, categories and other content that is not part of the original template page. Used in article List of chemical elements § List .
Columns (properties) that have no parameter are read from the § element data lists. A parameter (property) can have a footnote added like |density-fn={{efn-la|name=prediction}} When the value has bracket notation, eg. (1.23), use the val template like {{val|1.23|p=(|s=)}}. To display a bracketed range, eg. (22-24), use {{val|22|-|24|p=(|s ...
Alchemical Symbols is a Unicode block containing symbols for chemicals and substances used in ancient and medieval alchemy texts. Many of the symbols are duplicates or redundant with previous characters. [ 3] Few fonts support more than a few characters in this block as of 2021. One that does and is free for personal use is Symbola 14.0.
Margin (typography) A diagram displaying equal margins of width 25mm on an A4 page. In typography, a margin is the area between the main content of a page and the page edges. [ 1] The margin helps to define where a line of text begins and ends. When a page is justified the text is spread out to be flush with the left and right margins.