Physics · Structure of Atom
In his alpha-particle scattering experiment, Rutherford used alpha-particles which are _________ charged helium ions having a mass of ________.
- 1singly, 2 u
- 2doubly, 4 u✓
- 3singly, 4 u
- 4doubly, 8 u
Correct answer
doubly, 4 u
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