From the knowledge of the position of radium in the periodic table, which of the following statements would you expect to be false

Options

A. `RaSO_(4)` is insoluble in water
B. `RaSO_(4)` is insoluble in `HNO_(3)`
C. `RaSO_(4)` is a white solid
D. `RaSO_(4)` is a colourless liquid.

Explanation

To determine which statement about radium is false based on its position in the periodic table, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Position of Radium**:
- Radium (Ra) is located in Group 2 of the periodic table, which is known as the alkaline earth metals.

2. **Understand Properties of Alkaline Earth Metals**:
- Alkaline earth metals typically have certain characteristics: they are shiny, silvery-white, and are somewhat reactive, especially with water. They form oxides and hydroxides that are basic.

3. **Analyze the Statements**:
- We need to evaluate the statements given about radium and determine which one is false. Common statements might include:
- Radium is a radioactive element.
- Radium forms a sulfate (RaSO4) that is soluble in water.
- Radium is a heavy metal.
- Radium compounds are typically white solids.

4. **Evaluate Each Statement**:
- **Radium is a radioactive element**: True. Radium is known for its radioactivity.
- **Radium forms a sulfate (RaSO4) that is soluble in water**: False. Radium sulfate (RaSO4) is actually insoluble in water.
- **Radium is a heavy metal**: True. Radium is indeed classified as a heavy metal.
- **Radium compounds are typically white solids**: True. Many radium compounds, including RaSO4, are white solids.

5. **Conclusion**:
- The false statement regarding radium is that it forms a sulfate (RaSO4) that is soluble in water.

### Final Answer:
The statement that "Radium forms a sulfate (RaSO4) that is soluble in water" is false.