DIRECTION: Write TRUE or FALSE.
TRUE
1. Graphite makes up the lead in pencils
FALSE 2. Pure carbon exists in different forms.
3. Coal and soot or carbon black are forms of diamond
4. In diamond each carbon atom is bonded to four other carbon at
5. Graphite is the hardest known natural mineral.
6. In fullerene carbon atoms are arranged in hollow spheres.
7. Diamond is used as cutting and grinding tools
8. Carbon is solid at room temperature.
9. Carbon falls under group IVB in the periodic Table
10. Valence electrons can be represented as dots.​