1. When the hydrogen electron falls from an unknown higher energy level n=x to a lower energy level n=y, the emitted photon strikes a copper plate, and ejecting an electron with zero velocity. Find the unknown higher and lower energy levels. (Hint: before you start solving for x and y, you need to search for the binding energy for Copper metal). (25 points)

When an electron moves from a lower energy level to a higher energy level, energy is absorbed by the atom. When an electron moves from a higher to a lower energy level, energy is released (often as light). ... Transitions to level n = 1 are too high energy to see (UV)

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms