Fill in the Blanks Complete the sentences about atomsOnline version Complete the sentences about atoms by Miguel Angel Preciado Lopez 1 nucleus electrical negative neutrals electrons positive Neutrons have no charge . Protons have a electrical charge . Electrons move around the and have a negative electrical charge . Atoms which usually have the same number of protons and electrons are . If an atom gains electrons , it will have a charge . If an atom loses , it will have a positive charge .