Question

diamond and graphite are two forms of solid carbon. these two forms of carbon have

1. different crystal structures and different properties
2. different crystal structures and the same properties
3. the same crystal structure and different properties
4. the same crystal structure and the same properties

Explanation:

Diamond and graphite are allotropes of carbon. They have distinct atomic arrangements (crystal structures): diamond has a tetrahedral lattice, while graphite has layered hexagonal sheets. These structural differences lead to drastically different physical and chemical properties, such as hardness, electrical conductivity, and appearance.

Answer:

1. different crystal structures and different properties