Question

what are metalloids? give two examples.

Answer 1

METALLOIDS : Elements which show some properties of metals and some other properties of nonmetals are called metalloids.Metalloids look like metals but they are brittle like non metals. Metalloids are typically semiconductors which  means that they both insulate and conduct electricity . The semiconductor property makes metalloid very useful as a computer chip material . They are also called as semi metals.
Some important examples of metalloids are as follows : Boron(B), Silicon(Si) and Germanium(Ge).
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Answer 2

Metalloids:

Metalloids can be defined as the elements show intermediate properties of metal and non-metals. All known elements can be classified as metals, nonmetals and metalloids. Here metals are shiny hard conducting elements whereas non-metals are mainly found in liquid or gaseous state. They are insulators of heat and electricity.  

Two examples of metalloids:

1. Silicon (Si)
2. Arsenic (As).

So, these elements exhibit intermediate properties of both types of elements.