An external magnetic field causes the electrons' spins to align parallel to the field, causing a net attraction. ... (Some paramagnetic materials retain spin disorder even at absolute zero, meaning they are paramagnetic in the ground state, i.e. in the absence of thermal motion.)

Is se paramagnetic in its ground state?

Selenium actually has 2 unpaired electrons in the 4p-orbital, which makes it paramagnetic.

What elements are in ground state?

A ground-state atom is an atom in which the total energy of the electrons can not be lowered by transferring one or more electrons to different orbitals. That is, in a ground-state atom, all electrons are in the lowest possible energy levels. eg: Consider a carbon atom whose electron configuration is the following.