sentence: Some properties are like a nonmetal.
sentences_before: A 'semimetal' or a 'metalloid' is a chemical element. It has some properties like a metal.
sentences_after: It might be shiny, but brittle. It might be dull, but conducts electricity. It might be very hard, but shiny. The most common semimetal is silicon. Silicon has electrical conductivity between metals and nonmetals.
concept_name: property
headings: Semimetal
categories: Semimetals