Total energy of an electron orbiting around the nucleus of an atom is always negative. What is the significance of this?

Open in App

Solution

The negative sign shows that the electron is attracted towards the nucleus by electrostatic force and to remove the electron energy must be supplied. The energy needed to remove the electron in the first orbit is $+ 13.6 e V$ and this is called ionising energy of hydrogen.

Suggest Corrections

Similar questions

Q. A hydrogen-like an atom has its single electron orbiting around its stationary nucleus. The energy to excite the electron from the second Bohr orbit to the third Bohr orbit is

47.2 e V

. The atomic number of this nucleus is ______.

The total energy of an electron in the n^th orbit of a hydrogen atom is given by the formula E_n = -13.6 eV/n². What does the negative energy for an electron indicate?

Q. Assertion :Total energy of an electron in an hydrogen atom is negative. Reason: It is bounded to the nucleus.

Q. An electron orbiting around the nucleus of an atom

An electron is circulating around the nucleus of the hydrogen atom in a circular orbit of radius 5.3×10^-11 m calculate the electric potential at this radius and electric potential energy of the atom in EV.

Join BYJU'S Learning Program

Total energy of an electron orbiting around the nucleus of an atom is always negative. What is the significance of this?

The negative sign shows that the electron is attracted towards the nucleus by electrostatic force and to remove the electron energy must be supplied. The energy needed to remove the electron in the first orbit is +13.6 eV and this is called ionising energy of hydrogen.

The negative sign shows that the electron is attracted towards the nucleus by electrostatic force and to remove the electron energy must be supplied. The energy needed to remove the electron in the first orbit is $+ 13.6 e V$ and this is called ionising energy of hydrogen.