plum pudding model

英語（米国） (en-US) 英語（イギリス） (en-GB)

固有名詞

歴史的

(historical, physics) An obsolete scientific model of the atom, devised shortly after the discovery of the electron but before the discovery of the atomic nucleus, and according to which the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges. It was disproved in 1909.

日本語の意味

歴史的な物理学のモデルであり、電子発見後直後に提唱された原子核発見以前の原子模型です。原子は、電子が内部に存在し、その電子の負の電荷を中和するために、均一に広がる正の電荷が取り巻いているという理論であり、1909年に否定されました。

英語の意味

(historical, physics) An obsolete scientific model of the atom, devised shortly after the discovery of the electron but before the discovery of the atomic nucleus, and according to which the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges. It was disproved in 1909.

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When teaching undergraduates about early atomic theories, I often contrast the plum pudding model with Rutherford's nuclear model.

学部生に初期の原子理論を教える際、電子が正の電荷の中に埋め込まれているというトムソンの原子模型とラザフォードの核模型をよく対比します。

詳細

意味（1）

(historical, physics) An obsolete scientific model of the atom, devised shortly after the discovery of the electron but before the discovery of the atomic nucleus, and according to which the atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges. It was disproved in 1909.