Question

Which are the similarities between Boron and Silicon ?

• A. Both are non-metals
• B. High melting point
• C. Bad conductors of electricity
• D. All of these

Answer 1

The correct option is D All of these

Due to its small size and similar charge/mass ratio, boron differs from other group 13 members, but it resembles closely with silicon, the second element of group 14 to exhibit diagonal relationship. Some important similarities between boron and silicon are given below,

Both boron and silicon are typical non-metals, having high melting point and boiling point with nearly same densities low atomic volumes and bad conductor of current. However both are used as semiconductors.

Both of them do not form cation and form only covalent compounds.

Both exists in amorphous and crystalline state and exhibit allotropy.