50 POINTS NEED BY 9:00 pm TODAY Watch the U-Tube video: “The Genius of Mendeleev’s Periodic Table”
Use at least 5 sentences to describe the “genius” of Mendeleev in the development of the Periodic Table of Elements

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?