Radon is obtained from the decay of radium.(T/F)

Explanation

To determine whether the statement "Radon is obtained from the decay of radium" is true or false, we can follow these steps:

### Step 1: Understand the Elements Involved
- **Radium (Ra)**: It is a radioactive element with the atomic number 88 and a mass number of 226.
- **Radon (Rn)**: It is a noble gas, part of group 18, with the atomic number 86 and a mass number of 222.

### Step 2: Identify the Decay Process
- Radium undergoes radioactive decay. In this process, radium decays into radon along with the emission of an alpha particle and gamma rays.

### Step 3: Write the Decay Equation
The decay of radium can be represented by the following nuclear reaction:
\[ \text{Ra}^{226}_{88} \rightarrow \text{Rn}^{222}_{86} + \alpha + \gamma \]
This equation shows that radium (Ra) decays to produce radon (Rn), an alpha particle (α), and gamma radiation (γ).

### Step 4: Conclusion
Since radon is indeed produced as a result of the decay of radium, we can conclude that the statement "Radon is obtained from the decay of radium" is **True**.

### Final Answer
**True**

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