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)

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

the answer would be c