What part of an atom bonds with other atoms? ? a the innermost electrons b valence electronsany c the outermost protons d any electrons

Ionic bonds occur when electrons are donated from one atom to another. Each type of atom forms a characteristic number of covalentbonds with other atoms. An example of that is a hydrogen atom with one electron in its outer shell forms only one bond, its out most orbital becomes filled with two electrons.
the outermost protons

Iwould say a is accurate

During the 1800s. hope this !