Asked in Chemistry
Chemistry

Isolated arsenic atom in ground state paramagnetic or diamagnetic?

Answer

Wiki User
03/05/2009

Arsenic is paramagnetic because the electron configuration is {Ar}4s^2,3d^10,4p^3. Due to the unpaired electron at the end (4p^*3*) the atom in ground state is paramagnetic. **OR Arsenic would be paramagnetic since the 4 p orbitals each contain one electron with parallel spin. These three unpaired electrons give arsenic its paramagnetic property.