DavidB4-bot
→top: clean up
04:20
-13
HPadleckas
mentioned ions and molecules
03:15
+32
BrianCo
changed category
21:36
+8
Sulgran
no edit summary
02:57
+44
Hacker
New page: A '''crystal''' is a substance in which the constituent atoms are arranged in a consistent, repetitive, and therefore orderly pattern. Crystals are extremely common, forming the basis for ...
02:39
+316