Question

3. Which of the following electron transitions corresponds to emission of the longest wavelength light?

A. from n = 3 to n = 2

B. from n = 1 to n = 5

C. from n = 4 to n = 2

D. from n = 1 to n = 2

E. from n = 5 to n = 1

 

4. Emission from an excited Hg atom emits at 254 nm. What is the frequency of this light?

A: 1.18e15 sec^-1

B: 1.18e15 sec

C: 1.18e6 sec^-1

D: 1.18e6 sec