Question

Which one of the following is not mettalloid? a.Bovan b.calcium c.germanium d.silicon

Answer 1

calcium is the answer

Answer 2

Boron, silicon, germanium, arsenic, antimony, and tellurium are commonly recognised asmetalloids. Depending on the author, one or more from selenium, polonium, or astatine are sometimes added to the list.Boron sometimes is excluded, by itself, or with silicon. Sometimes tellurium is not regarded as a metalloid.