Question

Three elements B, Si, and Ge are

• A. metals
• B. non-metals
• C. metalloids
• D. metal, non-metal, and metalloid respectively

Answer 1

The correct option is C

metalloids

Explanation for correct option:

(C) metalloids

• Metalloids can be defined as chemical elements exhibiting properties that are in between or are a mixture of those metals and non-metals.
• They are bifurcated by a zig-zag line which separates metals from non-metals in the periodic table.
• Examples include: Boron($\mathrm{B}$), Silicon($\mathrm{Si}$), Germanium ($\mathrm{Ge}$), Arsenic($\mathrm{As}$), Antimony($\mathrm{Sb}$), Tellurium($\mathrm{Te}$), Polonium($\mathrm{Po}$)

Hence, option(C) is the correct option.

Explanation for incorrect options:

(A) metals

• This option is incorrect as all three elements Boron($\mathrm{B}$), Silicon($\mathrm{Si}$), and Germanium ($\mathrm{Ge}$) are metalloids.

(B) non-metal

• This option is incorrect as all three elements Boron($\mathrm{B}$), Silicon($\mathrm{Si}$), and Germanium ($\mathrm{Ge}$) are metalloids.

(D) metal, non-metal, and metalloid respectively

• This option is incorrect as all three Boron($\mathrm{B}$), Silicon($\mathrm{Si}$), and Germanium ($\mathrm{Ge}$) are metalloids.

Hence, option(C) is the correct option.