Question

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?

• A. Electrons have both wave and particle-like properties.
• B. The electron has a negative charge.
• C. The electron is far away from nucleus.
• D. Energy of electron in an atom is lower than the energy of an electron far away from nucleus.

Answer 1

The correct option is D

Energy of electron in an atom is lower than the energy of an electron far away from nucleus.

Energy of electron in an atom is lower than energy of an electron far away from nucleus.As we move away from nucleus electrons and nucleus are separated and E_n of an electron becomes zero.