2.2 Atomic Number and Atomic Mass

This video is an example of what I tutor in general chemistry.

Effective Nuclear Charge

This article is an example of what I tutor in general chemistry. Nucleus of an atom is positively charged due to protons and neutrons composing its core. Protons are positive particles and neutrons are neutral particles. Hence, nucleus is positively charged due to protons’ positive charge. Electrons are negatively charged particles found on the outside…