why there is a negetive sign while writing the the equation for the energy of an electron in its ststionary state (in bohr's model of atom) ?

Asked by Hari Rajagopal Anayath | 30th Jun, 2014, 06:15: PM

Expert Answer:

In Bohr's model of an atom,

The potential energy of the electron in stationary state is given by the Coulomb potential

U = (- 1/ 4πε0)(e2/r)

Here the potential energy is negative due to the sign of the electron charge.

Answered by Prachi Sawant | 9th Jul, 2014, 10:41: AM