When an organic compound has a charged carbon atom, the charge replaces one of the hydrogen atoms bonded to that carbon. A carbon atom typically has a formal charge of zero when it forms four bonds. However, when it carries a formal charge of +1, it bonds to only three atoms, which means it is associated with three electrons instead of four. This imbalance occurs because the carbon nucleus, containing four protons, does not have an equal number of electrons to balance the positive charge, resulting in a formal charge of +1. This explanation clarifies the relationship between carbon's bonding and its formal charge.