Question

The energy of electron is maximum at:
(A) Nucleus
(B) Ground state
(C) First excited state
(D) Infinite distance from the nucleus

Answer 1

The Bohr model portrays the ions as a little, decidedly charged core encompassed by electrons that move in round circles around the core comparable in structure to the nearby planetary group, yet with fascination given by electrostatic powers as opposed to gravity.

Complete answer:
Energy for $H$-ion is given by equation
${E_n} = \dfrac{{{E_1}}}{{{n^2}}}$
This energy has negative signs which shows that the electron is under fascination towards the core. The electron has least energy in the primary circle and its energy increments as n increments for example it turns out to be more positive. The electron can have a greatest energy estimation of zero when $n = \infty$. Bohr’s second proposal characterizes these steady circles. This proposal states that the electron spins around the core just in those circles for which the rakish force is some indispensable variety of $\dfrac {h}{2}$ where $h$ is the Planck’s steady.

Additional information: What are the bohr’s postulates?Bohr's first proposal was that an electron in a particle could rotate in certain steady circles without the discharge of brilliant energy, as opposed to the forecasts of electromagnetic hypothesis. Every molecule has certain distinct stable states wherein it can exist, and every conceivable state has positive absolute energy. These are known as the fixed conditions of the ions.
The other postulate proposed joined into the nuclear hypothesis the early quantum ideas that had been created by Planck and Einstein. It states that an electron may make a progress from one of its predefined non-transmitting circles to another of lower energy.
$h\nu = {E_i} - {E_f}$

Thus the correct answer to the question is option (D).

Note: The Bohr model is a moderately crude model of the hydrogen particle, contrasted with the valence shell iota model. As a hypothesis, it tends to be inferred as a first-request estimation of the hydrogen molecule utilizing the more extensive and considerably more exact quantum mechanics and, in this manner, might be viewed as an outdated logical hypothesis. Notwithstanding, in light of its effortlessness, and it's right outcomes for chose situation (see beneath for application), the Bohr model is still ordinarily educated to acquaint understudies with quantum mechanics or energy level outlines prior to proceeding onward to the more exact, yet more mind boggling, valence shell iota.