Atomic Structure (AQA GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
ShowHide
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 mass of an electron?
What is the relative mass of an electron?
0 (or 0.0005)
What is the relative charge of a neutron?
What is the relative charge of a neutron?
0
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 atomic radius?
How much smaller is the nucleus radius compared to the atomic radius?
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 propose?
What did Thomson's Plum Pudding Model propose?
A ball of positive charge with negative electrons embedded in it
What particles did Rutherford fire at gold foil in his 1909 experiment?
What particles did Rutherford fire at gold foil in his 1909 experiment?
Alpha particles
What did most alpha particles going straight through the gold foil show?
What did most alpha particles going straight through the gold foil show?
The atom is mostly empty space
What did some alpha particles bouncing straight back in Rutherford's experiment show?
What did some alpha particles bouncing straight back in Rutherford's experiment show?
Mass is concentrated in the centre
In Bohr's model, what are the electron orbits called?
In Bohr's model, what are the electron orbits called?
Energy levels or shells
Which scientist proved the existence of the neutron?
Which scientist proved the existence of the neutron?
James Chadwick
What happens when an atom absorbs electromagnetic radiation?
What happens when an atom absorbs electromagnetic radiation?
Electron moves to a higher energy level