Flashcards
history
Flashcards do conjunto (5)
- 1Who suggested that substances were made of tiny spheres called ATOMS What year?J.Dalton
1803 - 2Who and in what year discovered the negatively charged electron? What did he believe?Thomson
1897
That the atom was made out of electrons in a cloud of positive(plum pudding model) - 3Who proved Thomas' model wrong by proposing that the electrons were orbiting around the protons? What year?Rutherford
1911 - 4_____ noticed that the light given out when atoms were heated only had specific amounts of energy What did this suggest?What yr?Bohr
That the electrons were orbiting in shells
1914 - 5Chadwick discovered the presence of neutrons:Inside the nucleus
1932
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- GCSE Chemistry FlashCards sobre history, criado por Taysha st-louis em 18-06-2019.
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- Taysha st-louis
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