Historical models of the atom (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
In the early atomic model, what were atoms thought to be?
In the early atomic model, what were atoms thought to be?
Tiny solid spheres
Which discovery led scientists to develop the plum pudding model?
Which discovery led scientists to develop the plum pudding model?
Electrons
In the plum pudding model, where were electrons located?
In the plum pudding model, where were electrons located?
Scattered throughout positive sphere
In the alpha scattering experiment, what happened to most alpha particles?
In the alpha scattering experiment, what happened to most alpha particles?
Passed straight through
What did alpha particles bouncing back reveal about the atom?
What did alpha particles bouncing back reveal about the atom?
Tiny, dense, positive nucleus exists
According to the nuclear model, where is most of the atom's mass?
According to the nuclear model, where is most of the atom's mass?
In a tiny positive nucleus
What was Niels Bohr's key discovery about electrons?
What was Niels Bohr's key discovery about electrons?
They move in fixed orbits
What did Bohr's model successfully explain about atoms?
What did Bohr's model successfully explain about atoms?
Stability and light emission
What are protons?
What are protons?
Positive particles in the nucleus
Who discovered neutrons?
Who discovered neutrons?
James Chadwick
What electrical charge do neutrons have?
What electrical charge do neutrons have?
No charge
Which model came immediately after the plum pudding model?
Which model came immediately after the plum pudding model?
Nuclear model