Which of the following transitions in a hydrogen atom will result with a photon emitted with the longest wavelength?
a. n=1 to n = 2
b. n = 5 to n = 4
c. n = 3 to n = 4
d. n = 4 to n = 2
e. n = 3 to n = 1

hi my dude or dudette

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.