Atomic Structure (OCR GCSE Physics 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
What is the relative charge of a proton?
What is the relative charge of a proton?
+1
What is the relative mass of an electron?
What is the relative mass of an electron?
0 (0.0005)
What is the typical radius of an atom?
What is the typical radius of an atom?
metres
How much smaller is the nucleus radius compared to the atom?
How much smaller is the nucleus radius compared to the atom?
10,000 times smaller
What did Thomson's plum pudding model propose?
What did Thomson's plum pudding model propose?
Ball of +ve charge with -ve electrons in it
In Rutherford's experiment, what happened to most alpha particles?
In Rutherford's experiment, what happened to most alpha particles?
Went straight through
What did alpha particles bouncing back show about the atom?
What did alpha particles bouncing back show about the atom?
Mass is concentrated in the centre
What did Bohr call the specific distances where electrons orbit?
What did Bohr call the specific distances where electrons orbit?
Energy levels or shells
What particle did James Chadwick prove the existence of?
What particle did James Chadwick prove the existence of?
Neutron
What does the atomic number represent?
What does the atomic number represent?
Number of protons and electrons
What happens when an atom absorbs EM radiation?
What happens when an atom absorbs EM radiation?
Electron moves to higher energy level
Where are the highest energy levels in an atom?
Where are the highest energy levels in an atom?
Further from the nucleus