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::I have incorporated these references and an additional secondary history ref in a new section called "Significance". [[User:Johnjbarton|Johnjbarton]] ([[User talk:Johnjbarton|talk]]) 03:50, 14 July 2024 (UTC)
:::@[[User:Kurzon|Kurzon]] Please stop changing the lead sentence without discussion. It is inappropriate per sources and personally rude in my opinion. [[User:Johnjbarton|Johnjbarton]] ([[User talk:Johnjbarton|talk]]) 16:13, 21 July 2024 (UTC)
== Proposal for new organization of Development section. ==
Currently the Development section has chronological year-named subsections corresponding to some of Thomson publications or lectures. Several secondary references discuss this work as having two phases, one culminating in Thomson's 1904 paper and related lectures and a second phase triggered by his discovery that the number of electrons per atom is similar to the atomic weight ratio to hydrogen in 1906. Here is what A. Pais writes in Inward Bound:
* The period 1897-1913 consists of two distinct parts. In the first, it was believed that the number of electrons in the atom is large. In the second, it was realized that this number is of the order of the atomic number. This change was wrought by Thomson, in 1906.
I propose an organization like:
* Development (or Models?)
** Polyelectron atomic model
*** Magnet analog, mechanical stability, comparison to periodic chart and chemistry.
** Revised model
*** Discovery of the number of electrons per atom, consequences for the model.
** Beta scattering theory and experiment.
*** First efforts to directly test atomic model. Initial success.
[[User:Johnjbarton|Johnjbarton]] ([[User talk:Johnjbarton|talk]]) 16:23, 29 June 2024 (UTC)
:Eventually maybe. In writing history a good approach is to begin with a chronological approach, because timing is everything in history. Then as the information matures, it could perhaps be reorganized into something else. First, add the stuff you want to add with the chronological system. [[User:Kurzon|Kurzon]] ([[User talk:Kurzon|talk]]) 17:03, 29 June 2024 (UTC)
== Removing incorrect reference. ==
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