* Noble gases: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) all have completely filled electron shells, meaning all electrons are paired.
* Some other elements: Beryllium (Be), Magnesium (Mg), Zinc (Zn), Cadmium (Cd), and Mercury (Hg) also have all their electrons paired.
Key takeaway: Diamagnetic elements are not attracted to magnets because they have no unpaired electrons to create a magnetic moment.
