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  • 21 Aug, 2019

  • By, Wikipedia

File:Helium Atom QM.svg

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The helium atom, the smallest of atoms, has a nucleus (pink) consisting of two protons (red) and two neutrons (purple). The fuzzy cloud is the electron probability cloud, with darker regions of the cloud indicating where the electron most likely is.

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Date/TimeThumbnailDimensionsUserComment
current09:27, 20 October 2020Thumbnail for version as of 09:27, 20 October 2020665 × 667 (8 KB)Mykhalmore usual/natural SI unit
18:52, 10 June 2011Thumbnail for version as of 18:52, 10 June 2011665 × 667 (10 KB)Jorge StolfiReplaced "Ångström" by "Å" and changed the font sizes. Note that the name of the unit varies from language to language (and it is lowercase "angstrom" in English, not "Ångström" or "ångström") while the symbol is "Å" in all languages.
11:40, 26 December 2007Thumbnail for version as of 11:40, 26 December 2007665 × 667 (10 KB)Bromskloss"o" → "ö"
21:56, 18 July 2007Thumbnail for version as of 21:56, 18 July 2007665 × 667 (10 KB)Oleg AlexandrovMove the text a bit so that it does not overlap on itself
10:38, 15 June 2007Thumbnail for version as of 10:38, 15 June 2007665 × 667 (9 KB)Yzmo== Summary == {{Information |Description=A depiction of the atomic structure of the en:helium atom. The darkness of the en:electron cloud corresponds to the line-of-sight integral over the en:probability function of the 1

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