A solid has a very high melting point, great hardness, and poor electrical conduction. This is a(n)
Solid.
A) metallic and covalent network
B) covalent network
C) molecular
D) metallic
E) ionic

Question

Quizplus · Accepted Answer

The characteristics listed (high melting point, great hardness, and poor electrical conduction) are all properties of covalent network solids, which are held together by a network of covalent bonds between atoms. Metallic solids have good electrical conduction, molecular solids have lower melting points and are not typically as hard, ionic solids have lower hardness and more variable melting points.

A Solid Has a Very High Melting Point, Great Hardness