A. Paramagnetism is a form of magnetism that occurs only in the pres.pdf
- 1. A. Paramagnetism is a form of magnetism that occurs only in the presence of an external magnetic field. The magnetism is an induced magnetism in the presence of an external magnetic field. It causes the paramagnetic substance to be weakly attracted to the magnetic field. B. Paramagnetism can be determined experimentally by subjecting the substance to a magnetic field while suspended from the pan of a balance. The weight is observed with the electric field turned on and off. If the substance is paramagnetic, the weight will be more when the field is turned on. C. Paramagnetism is associated with unpaired electrons O2+ has 11 valence electrons So it is paramagnetic N2^2- has 12 electrons. We can expect two upaired electrons in the 2p* level. So it is paramagnetic Li2+ has one electron So it is paramagnetic O2^2- has 14 electrons Since there are no unpaired electrons, it is not paramagnetic. D. Number of unpaired electrons O2+ - 1 N2^2- - 2 Li2+ - 1 Solution A. Paramagnetism is a form of magnetism that occurs only in the presence of an external magnetic field. The magnetism is an induced magnetism in the presence of an external magnetic field. It causes the paramagnetic substance to be weakly attracted to the magnetic field. B. Paramagnetism can be determined experimentally by subjecting the substance to a magnetic field while suspended from the pan of a balance. The weight is observed with the electric field turned on and off. If the substance is paramagnetic, the weight will be more when the field is turned on. C. Paramagnetism is associated with unpaired electrons
- 2. O2+ has 11 valence electrons So it is paramagnetic N2^2- has 12 electrons. We can expect two upaired electrons in the 2p* level. So it is paramagnetic Li2+ has one electron So it is paramagnetic O2^2- has 14 electrons Since there are no unpaired electrons, it is not paramagnetic. D. Number of unpaired electrons O2+ - 1 N2^2- - 2 Li2+ - 1