Protons a. Protons are positively charged and are contained in the nucleus of an atom. Protons repel each other. Protons are attracted to electrons. Neutrons a. Neutrons have no charge and are contained in the nucleus of an atom. Electrons a. Electrons are negatively charged and surround the nucleus of an atom.
Electrons repel each other.
Electrons are attracted to protons. C. Atoms can become negatively charged if they gain more electrons. D. Atoms can become positively charged if they lose electrons. E. Atoms that are positively or negatively charged are called ions. Electricity can be classified as static electricity or current electricity.