Ibanenko, DD - Ibanenko

Japanese: イバネンコ,D.D. - いばねんこ
Ibanenko, DD - Ibanenko

...In other words, in 1932, J. Chadwick discovered that when alpha particles are irradiated onto beryllium, they produce electrically neutral particles with spin 1/2 and almost the same mass as a proton, which interact very strongly with hydrogen atoms. In the same year, W. Heisenberg and DD Ivanenko of the Soviet Union independently proposed the idea that an atomic nucleus is made up of Z protons and these neutral particles, i.e., A - Z neutrons. If we think of it this way, the nucleus of nitrogen is made up of 7 protons and 7 neutrons, which solves the spin problem, and also solves the electron problem based on the uncertainty principle, since electrons are no longer components of the atomic nucleus. ...

*Some of the terminology that mentions "Ivanenko, DD" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…すなわち,1932年にJ.チャドウィックは,α線をベリリウムにあてると,水素原子とたいへん強く相互作用をする,電気的に中性で陽子とほとんど同じ質量をもつスピン1/2の粒子が出てくることを発見した。同年W.ハイゼンベルクとソ連のD.D.イバネンコはそれぞれ独立に,原子核が陽子Z個とこの中性の粒子,すなわち中性子AZ個とからできているとの考えを提唱した。こう考えると窒素の原子核は7個の陽子と7個の中性子からなり,スピンの困難も解決できるし,また電子は原子核の構成要素ではなくなるので,不確定性原理に基づく電子の困難も解決できる。…

※「イバネンコ,D.D.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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