Question

Elaborate on the classification of boron

A) Boron is a noble gas and has a full valence electron shell, is chemically non-reactive, colorless, odorless, and low boiling point.

B) Boron is a metal and is shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.

C) Boron is a nonmetal and is dull, brittle, poor conductor of heat and electricity, forms acidic oxides, and forms anions in aqueous solution.
Eliminate

D) Boron is a metalloid and has properties of both metals and nonmetals - it appears dull but is ductile and forms both basic and acidic oxides.

Answer 1

The answer here is clearly D.) and that is just a fact.

Answer 2

the answer is D. hope this helps!!