Oi oi oi oi oi help pls

1) this is the structure in the cell nucleus that houses a cell's genetic information

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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?