Changes in the Atomic Model (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What did the Ancient Greeks believe about atoms?
What did the Ancient Greeks believe about atoms?
Tiny spheres that cannot be divided
In which year were electrons discovered?
In which year were electrons discovered?
1897
What did the plum-pudding model suggest?
What did the plum-pudding model suggest?
Ball of positive charge with electrons in it
Which material was used in the alpha-scattering experiment?
Which material was used in the alpha-scattering experiment?
Gold foil
What type of charge do alpha particles have?
What type of charge do alpha particles have?
Positive charge
What happened to most alpha particles in the experiment?
What happened to most alpha particles in the experiment?
They passed straight through
What did the experiment prove about the structure of atoms?
What did the experiment prove about the structure of atoms?
They are mainly empty space
Why were some alpha particles deflected?
Why were some alpha particles deflected?
Repelled by positive charge in centre
What did alpha particles bouncing back reveal about the nucleus?
What did alpha particles bouncing back reveal about the nucleus?
It contains a great deal of mass
What did Niels Bohr propose about electrons?
What did Niels Bohr propose about electrons?
They orbit at specific distances
What is the radius of an atom?
What is the radius of an atom?
nm ( m)
What are the relative charges of proton, neutron and electron?
What are the relative charges of proton, neutron and electron?
+1, 0, -1