Explanation:

* Thermal radiation is the process by which energy is transferred through electromagnetic waves. All objects above absolute zero (0 Kelvin) emit thermal radiation.

* Conductors are materials that allow heat to flow easily through them. This is because their electrons are free to move and carry energy.

* Good conductors have a large number of free electrons, which can easily absorb and emit photons of thermal radiation.

* Poor conductors have fewer free electrons, so they are less efficient at absorbing and emitting thermal radiation.

Therefore, good conductors are more efficient emitters of thermal radiation than poor conductors.

Examples:

* Metals (like copper, silver, and gold) are good conductors and excellent emitters of thermal radiation. This is why they are often used in heating elements.

* Insulators (like wood, plastic, and rubber) are poor conductors and poor emitters of thermal radiation.

Note:

* The emissivity of a material is a measure of its ability to emit thermal radiation. Good conductors typically have high emissivity, while poor conductors have low emissivity.

* The amount of thermal radiation emitted by an object also depends on its temperature. Higher temperatures result in more intense radiation.