Question

is the cn⁻ ion paramagnetic or diamagnetic?
paramagnetic
diamagnetic

Explanation:

To determine if \(CN^-\) is paramagnetic or diamagnetic, we look at its electron configuration. The \(CN^-\) ion has 10 valence electrons. Using molecular orbital theory, the electron configuration is \(\sigma_{1s}^2\sigma_{1s}^{*2}\sigma_{2s}^2\sigma_{2s}^{*2}\pi_{2p}^4\sigma_{2p}^2\). All electrons are paired. Diamagnetic substances have all electrons paired, while paramagnetic substances have unpaired electrons.

Answer:

Diamagnetic