נושה דרך אגב חוכמה alotropija diamant fuleren grafit הימור אפשרות זה מה שאעשה
Allotropy - Wikipedia
What is the difference between a diamond, graphite and fullerene? - Quora
Allotropes of carbon: Diamond, Graphite, and Fullerene - Chemistry Notes
Allotropes of carbon: Diamond, Graphite, and Fullerene - Chemistry Notes
1:50 explain how the structures of diamond, graphite and C60 fullerene influence their physical properties, including electrical conductivity and hardness - TutorMyself Chemistry
Prepared by Lawrence Kok From : Tutorial on Allotropes of Carbon. COVALENT. - ppt download