Determine what the d manifold looks like for co2+ in a tetrahedral environment if the σ salcs for the ligands are [a1, t2], while the π salcs are [e, t1, t2]. determine what the d manifold looks like for ni2+ in a square planar environment if the σ salcs for the ligands are [a1g, b1g, eu], while the π salcs are [a2g, b2g, a2u, b2u, eg, eu]

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?