Here's a breakdown:

* Metals: Most elements are metals, and the majority of them are solids at room temperature.

* Nonmetals: Some nonmetals are solids, including carbon, phosphorus, sulfur, selenium, and iodine.

* Metalloids: All metalloids are solids at room temperature.

Note:

* The definition of "room temperature" can vary, but it is generally considered to be around 20-25 degrees Celsius (68-77 degrees Fahrenheit).

* The physical state of an element can change with temperature and pressure.