While most elements can easily be categorised as either metals or non-metals, a few have physical and chemical properties that are in between, which makes them harder to classify.
While most elements can easily be categorised as either metals or non-metals, a few have physical and chemical properties that are in between, which makes them harder to classify. These metalloids are: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.
These metalloids are: boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.