No, there is no specific collective name for a neutron and an electron together. The combination of a neutron and an electron does not form a stable or commonly observed particle or entity that has its own distinct name like a hydrogen atom or a nucleus.
In the case of a hydrogen atom, the proton and electron are held together by electromagnetic forces, forming a stable entity with unique properties. Similarly, a nucleus consists of protons and neutrons bound together by nuclear forces.
While a neutron and an electron can interact with each other in certain circumstances, such as during beta decay where a neutron decays into a proton, electron, and neutrino, they do not typically exist as a stable composite particle. Neutrons and electrons are fundamentally different in terms of their properties and interactions, and they usually exist independently or within the context of atoms or other particles.