In the aufbau order of occupancy of electronic energy levels, the level occupied just after 5p is

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

Heat is the total potential energy of a substance that can be transferred. true false

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?