2, 4 (2 electrons in the K shell, 4 in the L shell). Valence Electrons: 4. 2. Covalent Bonding in Carbon
Spherical or cage-like molecules, such as Buckminsterfullerene ( C60cap C sub 60 Summary Table: Key Concepts Definition Covalent Bond Chemical bond formed by sharing electrons. Valency The combining capacity of an atom (4 for Carbon). Catenation Property of forming long chains or rings. Allotropy Existence of an element in more than one physical form. Class 10 Notes: Carbon Compounds | PDF - Scribd
Carbon exists in different physical forms known as allotropes, which have different structures but the same chemical identity: