Question

which crystalline solid is hard ​

Answer 1

Network crystalline solids consist of atoms that are held together by covalent bonds. They are incredibly hard, have high melting points and are poor conductors of heat and electricity. Some of the most well-known crystalline solids—specifically quartz (SiO2) and diamonds (C)—fall under the network categorization.

Hope it helps you guys .....

please mark me as a brainliest answer..

Answer 2

Diamond is the solid crystalline which is hard...

HOPE IT WILL HELP YOU.... MARK IT AS BRAINLIEST ANSWER... ✌️