Question

Classify each of the following elements as
a metal, a nonmetal, or a metalloid:
boron, carbon, aluminum, and silicon.

Answer 1

The non-metals are boron and carbon. The metal is aluminum and the metalloid is silicon.

Explanation:

non-metal = boron, carbon

metal = aluminum

metalloid = silicon

Answer 2

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

What is metal?

A solid material which is lustrous, hard, shiny, malleable, and sonorous with good electrical and thermal conductivity.

Metal is an element which is typically hard, shiny, fusible, malleable, and ductile, with good electrical and thermal conductivity.

A nonmetal is an element that does not have the properties of a metal.

A metalloid is an element having intermediate properties of both metals and nonmetals.

Hence,

Non-metal = boron, carbon

Metal = aluminum

Metalloid = silicon

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