1 янв 1897 г. - JJ Thompson
Описание:
He believed that an atom could be divided into a smaller form. He also discovered that there was a negative charge in an atom called the electron. He had experimental evidence since he used a cathode ray tube, "Crookes tube". He used this device to see and find the atoms and use different charges to find them with a magnet.Добавлено на ленту времени:
Дата:
1 янв 1897 г.
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~ 128 г назад