Discussion Forum

Which of the following corresponds to the energy of the possible excited state of hydrogen?

Answer:

Explanation:

The different energy levels of an atoms  are given by the equation . $E_{n}=-13.6 Z^{2}/n^{2}eV$

Z is the atomic number of hydrogen =1

 n=1,2,3 and so on much that the ground state has n=1 and the secondary  energy level (first , excited state) has n=2

 So,  for first excited  state ,n=2

 E=-13.6 /2²=-13.6/4=-3.4eV