Fill in the blanks:
Metals are ________ conductors of heat and _________.

Explanation

To fill in the blanks in the statement "Metals are ________ conductors of heat and _________," we need to analyze the properties of metals.

1. **Understanding Metals**: Metals are elements that are generally solid at room temperature (with the exception of mercury) and are characterized by their ability to conduct heat and electricity. They have a high density and are malleable and ductile.

2. **Conductivity of Metals**: One of the key properties of metals is their ability to conduct heat and electricity efficiently. This is due to the presence of free-moving electrons within the metal structure. These free electrons allow metals to transfer energy quickly.

3. **Filling the Blanks**:
- For the first blank, we need a word that describes how well metals conduct heat. The appropriate word here is "good" because metals are known for their excellent thermal conductivity.
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