Question

Which one of the following element is metalloid?

• A. C
• B. Si
• C. Ge
• D. Pb

Answer 1

The correct option is C Ge

The elements which are found in the step-like line between metals and nonmetals of the periodic table are known as the metalloids. Among carbon family germanium (Ge) is metalloid.

THEORY

Physical properties:

1. All group 14 members are solids.
2. Carbon and silicon are non-metals.
3. Germanium is a metalloid.
4. Tin and Lead are soft metals with low melting points.
5. Melting points and boiling points of group 13 elements is less than Melting points and boiling points of group 14 elements due to stronger metallic bonding.