Question

as changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit ____.

remain the same

decrease

increase

cannot be determined

Explanation:

According to the formula \(E = h
u\) (where \(E\) is energy, \(h\) is Planck's constant, and \(
u\) is frequency), when the energy change (\(\Delta E\)) of electrons increases, since \(h\) is a constant (\(h = 6.626\times10^{-34}\space J\cdot s\)), the frequency \(
u=\frac{\Delta E}{h}\) will increase.

Answer:

C. increase