Thomson
Atomic Model = Protons and Electrons Model
Analogy = Chocolate Chip Cookie (1 янв 1897 г. – 31 дек 1897 г.)
Описание:
In 1897, the English scientist named J.J. Thomson provided the first hint that an atom is made of even smaller particles. He discovered the presence of a negative particle in the atom - the electron. He proposed a model of the atom that is sometimes called the "plum pudding" model. His theory was that atoms are made from a positively-charged substance with negatively-charged electrons scattered about, like raisins in a pudding or chocolate chips in a cookie.
Добавлено на ленту времени:
Дата:
1 янв 1897 г.
31 дек 1897 г.
~ 12 months
Изображения:
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