Question

The maximum energy is present in any electron at :-

• A. Nucleus
• B. Ground state
• C. First excited state
• D. Infinite distance from the nucleus

Answer 1

Answer: (D)

Infinite distance from the nucleus

Answer 2

Electron energy in an atom is negative for bound states, given by the formula $E_n = -13.6 \frac{Z^2}{n^2} \text{ eV}$. As $n$ approaches infinity ($n \to \infty$), $E_n$ approaches zero ($E_n \to 0$). Zero is the maximum energy for an electron to be considered part of the atom's energy spectrum or just freed from the atom.