Which of the following elements is a metalloid?
A
arsenic
B
boron
C
antimony
D
All of the above
Correct Answer: All of the above
A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.
The six commonly recognised metalloids are
boron,
silicon,
germanium,
arsenic,
antimony, and
tellurium.