Does the electron retain the energy forever ?

Does the electron retain the energy at excited state forever ?

What does the negative electronic energy for hydrogen atom mean?

What does the negative electronic energy for hydrogen atom mean?

What does the negative electronic energy (negative sign for all values of energy) for hydrogen atom means?

What does the negative electronic energy (negative sign for all values of energy) for hydrogen atom means?

In photoelectric effect the energy of the free electron does not depend on.............of light.

(a) What is the electric potential energy of two electrons separated by 3.00 nm? (b) If the separation increases, does the potential energy increase or decrease ?

A : Energy of electron is taken negative R: energy of electron at infinity is zero

A : Energy of electron is taken negative R: energy of electron at infinity is zero