Final answer:
Sulfur is an example of a nonmetallic mineral, while lead, aluminum, and gold are all metals. Metals are found on the left side and center of the periodic table, whereas nonmetals like sulfur are on the right.
Step-by-step explanation:
Among the options provided, sulfur (A) is an example of a nonmetallic mineral. Sulfur is well-known for being a bright yellow, brittle solid at room temperature and does not exhibit the typical properties associated with metals such as high electrical conductivity and malleability.
On the other hand, lead (B), aluminum (C), and gold (D) are all metals. Metals are elements that tend to be shiny, ductile, and good conductors of electricity and heat. They are located on the left side and in the center of the periodic table, whereas nonmetals are found on the right side of the table, with some exceptions.
For further understanding, here are some examples of how to classify other elements:
- Lithium (Li) is a metal.
- Argon (Ar) is a nonmetal.
- Americium (Am) is an inner transition metal.
- Iron (Fe) is a transition metal.