Which of the following is positively charged?
(1.) α -particle
(2.) β -particle
(3.) γ -rays
(4.) X -rays

Options

A. `alpha`-particle
B. `beta`-particle
C. `gamma`-rays
D. `X`-rays

Answer

To determine which of the given options is positively charged, let's analyze each option step by step.

### Step 1: Understand the nature of each particle/ray
1. **Alpha Particle (α-particle)**: An alpha particle consists of 2 protons and 2 neutrons, which is equivalent to a helium nucleus. Since it has 2 protons, it carries a positive charge of +2.

2. **Beta Particle (β-particle)**: A beta particle is essentially an electron, which has a negative charge of -1. Therefore, it is not positively charged.

3. **Gamma Rays (γ-rays)**: Gamma rays are high-energy electromagnetic radiation. They do not have any charge; they are neutral.

4. **X-rays**: Similar to gamma rays, X-rays are also a form of electromagnetic radiation and do not possess any charge.

### Step 2: Identify the positively charged particle
From the analysis:
- The alpha particle is positively charged (+2).
- The beta particle is negatively charged (-1).
- Gamma rays are neutral (0).
- X-rays are neutral (0).

Thus, the only positively charged option is the **alpha particle**.

### Conclusion
The correct answer is:
**(1) α-particle**

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