The Atom (Edexcel GCSE Physics): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What particles are found in the nucleus of an atom?
What particles are found in the nucleus of an atom?
Protons and neutrons
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
Where is most of the mass of an atom concentrated?
Where is most of the mass of an atom concentrated?
In the nucleus
What did Thomson's plum pudding model suggest?
What did Thomson's plum pudding model suggest?
Positive ball with embedded electrons
What did Rutherford conclude when most alpha particles went straight through gold foil?
What did Rutherford conclude when most alpha particles went straight through gold foil?
The atom is mostly empty space
What did alpha particles bouncing back in Rutherford's experiment show?
What did alpha particles bouncing back in Rutherford's experiment show?
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 does the atomic number represent?
What does the atomic number represent?
Number of protons and electrons
What does the atomic mass number represent?
What does the atomic mass number represent?
Sum of protons and neutrons
What happens when an atom absorbs electromagnetic radiation?
What happens when an atom absorbs electromagnetic radiation?
Electron moves to higher energy level