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  2. List of chemical elements - Wikipedia

    en.wikipedia.org/wiki/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).

  3. List of typographical symbols and punctuation marks

    en.wikipedia.org/wiki/List_of_typographical...

    (non-Unicode name) 'Pillow' is an informal nick-name for the 'Square lozenge' in the travel industry. The generic currency sign is superficially similar | Pipe (non-Unicode name) (Unicode name is "vertical bar") + Plus sign: minus sign, ampersand: ±: Plus–minus sign ('plus or minus') Approximately equal to ′ ″ ‴ Prime (symbol ...

  4. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    Print/export Download as PDF; Printable version; In other projects ... 52415-29-9 C 8 H 6 ClN: 4-chloroindole: 25235-85-2 C 8 H 6 Cl 2 O 3: 2,4-dichlorophenoxyacetic ...

  5. List of numeral systems - Wikipedia

    en.wikipedia.org/wiki/List_of_numeral_systems

    Such method is 6.7% more efficient than MIME-64 which encodes a 24 bit number into 4 printable characters. 89: Largest base for which all left-truncatable primes are known. 90: Nonagesimal: Related to Goormaghtigh conjecture for the generalized repunit numbers (111 in base 90 = 1111111111111 in base 2). 95: Number of printable ASCII characters ...

  6. List of chemical elements named after places - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_elements...

    32 of these have names tied to the Earth and the other 10 have names connected to bodies in the Solar System. The first tables below list the terrestrial locations (excluding the entire Earth itself, taken as a whole) and the last table lists astronomical objects which the chemical elements are named after. [1]

  7. List of symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_symbols

    List of mathematical constants (typically letters and compound symbols) Glossary of mathematical symbols; List of physical constants (typically letters and compound symbols) List of common physics notations (typically letters used as variable names in equations) Rod of Asclepius / Caduceus as a symbol of medicine

  8. List of breakfast foods - Wikipedia

    en.wikipedia.org/wiki/List_of_breakfast_foods

    This is a list of notable breakfast foods from A to Z. Breakfast is the meal taken after rising from a night's sleep, most often eaten in the early morning before undertaking a day's work. Among English speakers, breakfast can be used to refer to this meal or to refer to a meal composed of traditional breakfast foods such as eggs and much more.

  9. List of lucky symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_lucky_symbols

    8: Chinese, Japanese Sounds like the Chinese word for "fortune". See Numbers in Chinese culture#Eight. Used to mean the sacred and infinite in Japanese. A prime example is using the number 8 to refer to Countless/Infinite Gods (八百万の神, Yaoyorozu no Kami) (lit. Eight Million Gods). See 8#As a lucky number. Aitvaras: Lithuania [5] Acorns ...