AimMent
← NEET Chemistry
NEETChemistryThe Solid StateClass 12

I keep getting “Crystalline vs amorphous” questions wrong in The Solid State. What's the trap?

calling glass a true crystalline solid.

The usual trap: calling glass a true crystalline solid. How to avoid it: glass is a 'supercooled liquid' — no sharp melting point. Go back to the definition — crystalline solids have long-range ordered arrangement and sharp melting points; amorphous solids (glass) lack order and soften over a range.

Key point

Crystalline vs amorphous

Common mistake

calling glass a true crystalline solid.

Memory tip

glass is a 'supercooled liquid' — no sharp melting point.

Tap to watch or see it right here — the app stays open (it only opens a quick search if nothing embeddable is found).

More on The Solid State

Diamond and graphite are both pure carbon — why is one the hardest natural material and the other soft enough to write with?Why can metals be hammered into sheets and conduct electricity, while an ionic crystal like salt just shatters?Why does window glass have no fixed melting point and can even slowly 'flow' over centuries?How does adding a tiny amount of another element (doping) turn silicon into a useful semiconductor?What does “Crystalline vs amorphous” actually mean in The Solid State, and why does it matter for NEET?What does “Types of crystalline solids” actually mean in The Solid State, and why does it matter for NEET?