Molecules are held together by electrons shared between bonded atoms. For example, consider the formation of an H2 molecule from two separate hydrogen atoms: 2 approachinghydrogen atoms(2 H) a hydrogen molecule(H2) As the two atoms approach, each nucleus begins to attract the other atom's electrons.
Definition of Hyphomycetes. in some classifications. : a subclass of fungi coextensive with the order Moniliales or including both the Moniliales and the Mycelia Sterilia.
Definition of HYPHA. : one of the threads that make up the mycelium of a fungus, increase by apical growth, and are transversely septate or nonseptate.â hyÂ·phal \-fÉl\ adjective. See hypha defined for kids.ADVERTISEMENT.edical Definition of HYPHA. : one of the threads that make up the mycelium of a fungus, increase by apical growth, and are coenocytic or transversely septate.