An electron in the hydrogen atom makes a transition from an energy state of principal quantum number ni to the n = 2 state. if the photon emitted has a wavelength of 657 nm, what is the value of ni?

Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood