History of the Atom (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Who published the first scientific theory about atoms in 1803?
Who published the first scientific theory about atoms in 1803?
John Dalton
How did Dalton describe atoms in his atomic theory?
How did Dalton describe atoms in his atomic theory?
Indivisible & indestructible spheres
Which scientist discovered the electron?
Which scientist discovered the electron?
J.J. Thomson
What model did Thomson propose after discovering the electron?
What model did Thomson propose after discovering the electron?
Plum pudding model
In the plum pudding model, what is the atom depicted as?
In the plum pudding model, what is the atom depicted as?
Ball of positive charge with electrons scattered
Who designed the alpha particle scattering experiment with gold foil?
Who designed the alpha particle scattering experiment with gold foil?
Ernest Rutherford
In which year did Rutherford conduct his gold foil experiment?
In which year did Rutherford conduct his gold foil experiment?
1909
What did Rutherford fire at the gold foil in his experiment?
What did Rutherford fire at the gold foil in his experiment?
Positively charged alpha particles
What happened to most alpha particles in Rutherford's experiment?
What happened to most alpha particles in Rutherford's experiment?
They passed straight through the foil
What did the passing through of alpha particles indicate about atoms?
What did the passing through of alpha particles indicate about atoms?
Atoms are mostly empty space
What did the deflection of some alpha particles suggest?
What did the deflection of some alpha particles suggest?
Small, dense, positively charged centre
What are the key properties of the nucleus in Rutherford's model?
What are the key properties of the nucleus in Rutherford's model?
Positively charged & contains most mass