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File:Thomson atom seven electrons.svg

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English: This is a diagram of an atom with seven electrons, as described J. J. Thomson in a lecture in 1905. In that lecture, he presented a diagram (File:Thomson_atom_electron_arrangements.jpg) in which he showed hypothetical arrangements of electrons in an atom. This image is based on Thomson's rendition of a seven-electron atom. The electrons are arranged in a pentagonal dipyramid. At the time, Thomson believed that even small atoms contained thousands of electrons, but calculating how so many electrons would arrange themselves in an atom was too computationally difficult for him. In 1913, scientists deduced that an atom contains a number of electrons equal to its atomic number. This atom with seven electrons would therefore be nitrogen, but by then the plum pudding model had been declared obsolete.
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24 April 2024

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current09:15, 27 April 2024Thumbnail for version as of 09:15, 27 April 2024297 × 297 (4 KB)Kurzonshading of lines
13:57, 25 April 2024Thumbnail for version as of 13:57, 25 April 2024297 × 297 (4 KB)Kurzon..
13:23, 25 April 2024Thumbnail for version as of 13:23, 25 April 2024571 × 569 (5 KB)Kurzonadded missing lines
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10:01, 24 April 2024Thumbnail for version as of 10:01, 24 April 2024523 × 523 (197 KB)Kurzonresize
09:57, 24 April 2024Thumbnail for version as of 09:57, 24 April 2024744 × 1,052 (196 KB)KurzonUploaded own work with UploadWizard

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