Question

answer the following questions regarding the magnetism lab. question 20 (1 point) listen paramagnetic ions must have... an odd number of electrons a completed energy level electrons in an s orbital at least one unpaired electron

Explanation:

Paramagnetic substances are attracted to a magnetic field. This property arises due to the presence of unpaired electrons. When there are unpaired electrons, their spins can align with an external magnetic field, causing the substance to be paramagnetic.

• An odd number of electrons does not guarantee paramagnetism. For example, if all electrons are paired (even in an ion with odd - numbered electrons due to loss or gain of electrons in a way that pairs are formed), it won't be paramagnetic.
• A completed energy level means all electrons are paired (by the Pauli exclusion principle and Hund's rule), so such ions are diamagnetic (repelled by a magnetic field).
• Electrons in an s - orbital do not determine paramagnetism. If the s - orbital is filled (two electrons, paired), the ion is not paramagnetic.

Answer:

at least one unpaired electron