The number of electrons present in each `alpha`-particle is

Options

A. 2
B. 3
C. 0
D. 1

Explanation

To solve the question about the number of electrons present in each alpha particle, we can follow these steps:

### Step 1: Understand what an alpha particle is
An alpha particle is a type of particle that is emitted during radioactive decay. It is composed of 2 protons and 2 neutrons, which is essentially the same as a helium nucleus.

**Hint:** Remember that an alpha particle is a helium nucleus.

### Step 2: Determine the charge of the alpha particle
An alpha particle has a positive charge of +2 because it contains 2 protons. Protons are positively charged, and neutrons have no charge.

**Hint:** Protons contribute to the positive charge of the alpha particle.

### Step 3: Identify the number of electrons
In a neutral atom, the number of protons equals the number of electrons. However, since an alpha particle has a +2 charge, it means it has lost 2 electrons. Therefore, the number of electrons in an alpha particle is 0.

**Hint:** The charge of the particle helps determine how many electrons are present.

### Step 4: Conclusion
Since the alpha particle has lost 2 electrons, the total number of electrons present in each alpha particle is 0.

**Final Answer:** The number of electrons present in each alpha particle is 0.