A body that has the same number of positively charged protons and negatively charged electrons is normally neutral. Positive charge becomes greater than negative charge in the body as certain electrons are removed out of the body, and the body as a whole is also positively charged.
A positively charged body has an electron deficiency. If a molecule or atom loses an electron, the positive nuclear charge of the molecule or atom exceeds the negatively charged of the orbiting electrons, providing it an overall positive charge.
Sodium, for instance, has become a positively charged ion on losing its valence electron.