Final answer:
Metalloids and nonmetals are similar in that they are both generally poor conductors of heat and electricity, and solid forms of both tend to be brittle.
Step-by-step explanation:
In what two ways are metalloids similar to nonmetals? Metalloids share several characteristics with nonmetals. First, both metalloids and nonmetals are generally poor conductors of heat and electricity. Unlike metals, which are often excellent conductors, metalloids have moderate conductivity, which increases with temperature, while nonmetals are typically poor conductors with the exception of graphite. Second, in their solid state, nonmetals tend to be brittle, a trait that is also observed in metalloids. When struck with a hammer or when attempts are made to draw them into a wire, they will likely break or shatter rather than deform. These similarities show the intermediate properties that metalloids exhibit between metals and nonmetals.