Final answer:
The attraction between nuclei and valence electrons of different atoms that binds them together is known as a covalent bond.
Step-by-step explanation:
A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is called a covalent bond. This bond is the electrostatic attraction between the positively charged nuclei of the bonded atoms and the negatively charged electrons they share. While the motion of electrons in an atom can induce a dipole in an adjacent atom, leading to London dispersion forces, these are distinct from the covalent bonds that tie atoms in a molecule together. Covalent bonds, including polar covalent bonds where electrons are shared unequally due to differences in electronegativity, are responsible for the formation of molecules.