Discovery and Research on the nucleus Flashcards
1
Q
- Who was behind the gold foil experiment?
- What year was the radius of the nucleus discovered?
[2 marks]
A
- Ernest Rutherford
- 1909
2
Q
Most of the alpha particles (He+2) passed through the foil. What does that reveal about the atoms structure? [1 mark]
A
Most of the atom is empty space.
3
Q
What is the radius (metres) of an atom? [1 mark]
A
∼ 10-10m
4
Q
What’s the radius of the nucleus? [1 mark]
A
∼10-15m
