Calculate the energy changes when the electron transitions from the n=1 to the n = 4 state for the following ions.
A.33% Part (a) Singly ionized helium, He⁺.
B.33% Part (b) Doubly ionized lithium, Li⁺⁺
C.33% Part (c) Triply ionized beryllium, Be⁺⁺⁺⁺