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9 Cards in this Set
- Front
- Back
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what word does atom come from?
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the greek word atomos
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what is the meaning of this word?
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this greek word mean uncuttable or unsplitable
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list the models
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bohr
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2 characteristics of the bohr model
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atom is a small positively charged nucleus and the atom is surrounded by electrons
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what scientist discovered the electron?
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J.J. thompson
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what was the name of this model?
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Thompson model
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Who discovered the nucleus?
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Ernest Rutherford
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how was the nucleus discovered?
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Rutherford took a sheet of gold and shot alpha particles at the tin. He realized that most of the particles passed through so he realized that there was a space in the middle of an atom called the nucleus.
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difference between indirect and direct evidence
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indirect: using your 5 sences
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