Helium atoms do not combine to form He₂ molecules, yet He atoms do attract one another weakly through A)dipole-dipole forces. B)ion-dipole forces. C)dispersion forces. D)dipole-induced dipole forces. E)hydrogen bonding.

Question

Quizplus · Accepted Answer

Helium is a noble gas that exists as a monatomic gas, meaning it is composed of individual atoms rather than molecules. Since Helium atoms do not have a permanent dipole moment or an ability to form ions, hydrogen bonding or ion-dipole forces cannot occur. However, all atoms and molecules possess temporary dipoles, which cause the attraction between Helium atoms through dispersion forces. These are the only intermolecular forces that exist between Helium atoms.

Helium Atoms Do Not Combine to Form He2 Molecules, Yet

Helium Atoms Do Not Combine to Form He₂ Molecules, Yet