Question

What is the significance of negative electronic energy?

Answer 1

Significance of negative electronic energy:

• The energy of an electron at infinity is arbitrarily assumed to be zero$.$ this state is called zero energy state.
  
• When an electron moves and comes under the influence of nucleus$,$ it does some work and spends its energy in this process$.$ thus$,$ the energy of the electron decreases and it becomes less than zero $i.e.,$ it acquires a negative value$.$