Final answer:
Nonmetals have properties such as brittleness and low melting and boiling points at room temperature.
Step-by-step explanation:
The properties of nonmetals include being brittle and having low melting and boiling points at room temperature.
Nonmetals are elements that are typically poor conductors of heat and electricity. They tend to have very high electronegativity and often gain electrons to form negative ions.
Examples of nonmetals include carbon, oxygen, nitrogen, and sulfur. Carbon, for instance, exists as a solid in its pure form and is very brittle. Its melting point is around 3,550 degrees Celsius, and its boiling point is about 4,827 degrees Celsius.
Learn more about Properties of Nonmetals