Discovery of the atom (Edexcel GCSE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What did the Greeks believe about atoms?
What did the Greeks believe about atoms?
Tiny spheres that cannot be divided
In Thomson's Plum Pudding Model, what is an atom?
In Thomson's Plum Pudding Model, what is an atom?
Ball of + charge with - electrons in it
What did Rutherford fire at gold foil in his 1909 experiment?
What did Rutherford fire at gold foil in his 1909 experiment?
Alpha particles
Most alpha particles went straight through the gold foil. What does this show?
Most alpha particles went straight through the gold foil. What does this show?
The atom is mostly empty space
Some alpha particles bounced straight back in Rutherford's experiment. What does this prove?
Some alpha particles bounced straight back in Rutherford's experiment. What does this prove?
Mass is concentrated in the centre
In Bohr's model, how do electrons move around the nucleus?
In Bohr's model, how do electrons move around the nucleus?
Orbit at specific distances
What are the orbits of electrons called?
What are the orbits of electrons called?
Energy levels or shells
What particle did James Chadwick prove the existence of?
What particle did James Chadwick prove the existence of?
Neutron
In the current model, what does the nucleus contain?
In the current model, what does the nucleus contain?
Protons and neutrons
Which scientist developed their atomic model first?
Which scientist developed their atomic model first?
Dalton in 1803