The atomic reactor when used to generate electricity is termed breeder reactor.

Answer

To determine whether the statement "The atomic reactor when used to generate electricity is termed breeder reactor" is true or false, we can follow these steps:

### Step 1: Understand the Types of Nuclear Reactors
- **Nuclear Power Reactors**: These are designed specifically for generating electricity. They utilize nuclear fission to produce heat, which is then used to generate steam that drives turbines to produce electricity.
- **Breeder Reactors**: These are a specific type of nuclear reactor that generates more fissile material than it consumes. They convert non-fissile isotopes into fissile isotopes, thus "breeding" fuel.

### Step 2: Analyze the Statement
- The statement claims that the atomic reactor used to generate electricity is called a breeder reactor.
- Since breeder reactors are not primarily designed for electricity generation but rather for producing fissile material, this statement is misleading.

### Step 3: Conclusion
- Based on the definitions and functions of the reactors, the statement is **false**. The correct term for reactors that generate electricity is **nuclear power reactors**, not breeder reactors.

### Final Answer
The statement is **false**.

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