Q: What are the three classifications of elements?


Read this paragraph and choose the correct option from the provided answers:

The majority of known elements are classified as metals. Metals are elements that are lustrous, or shiny. They are also good conductors of electricity and heat. Examples of metals include iron, gold, and copper. Fewer than 20 elements are classified as nonmetals. Nonmetals lack the properties of metals. Examples of nonmetals include oxygen, hydrogen, and sulfur. Certain other elements have properties of both metals and nonmetals. They are known as metalloids. Examples of metalloids include silicon and boron.

 Choices:

- metals, non-metals and alkaloids

- metals, metaloids, and alkaloids

- alkaloids, metaloids, and non-metals

- metals, non-metals and metaloids


A:
metals, non-metals and metaloids