Which scientist in the early 1800s put forward the idea that all atoms of the same element were identical?
John Dalton
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What is the 'plum pudding' model of the atom?
a tiny positive sphere , with negative charges - electrons - spread evenly throughout the atom, like plums in a plum pudding.
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Who put forward the 'plum pudding' model of the atom?
J.J. Thompson
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What happened in the experiment done by Geiger and Marsden?
Alpha particles were fired at gold foil.
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How did Ernest Rutherford discover the nucleus?
The experiment done by Geiger and Marsden suggested that, in the atom, there was a concentrated mass because, a few particles bounced back and deflected off course.
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What did Niels Bohr suggest in 1913?
That electrons fitted into shells and did not just fly around the nucleus randomly.
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Who suggested that 2/more atoms of different elements linked together was a compound?
John Dalton
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Other cards in this set
Card 2
Front
What is the 'plum pudding' model of the atom?
Back
a tiny positive sphere , with negative charges - electrons - spread evenly throughout the atom, like plums in a plum pudding.
Card 3
Front
Who put forward the 'plum pudding' model of the atom?
Back
Card 4
Front
What happened in the experiment done by Geiger and Marsden?
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