Alpha particle would go undiviated when it collides with an electron of gold foil . Why ?

Explanation

To understand why an alpha particle goes undeviated when it collides with an electron in a gold foil, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding the Particles**:
- An alpha particle consists of 2 protons and 2 neutrons, giving it a mass of approximately 4 times that of a proton (4m_p) and a charge of +2e (where e is the charge of an electron).
- An electron has a much smaller mass (m_e) and a charge of -e.

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