Per Bohr's model (eqn 2.13), the energy of the electron in the n-th stationary state of the hydrogen atom is which formula? (R_H = 2.18 × 10⁻¹⁸ J)
AE_n = −R_H × n
BE_n = R_H × n
CE_n = +R_H × n²
DE_n = −R_H / n²
Answer & Solution
Correct answer: D. E_n = −R_H / n²
Per NCERT eqn 2.13, E_n = −R_H / n² with R_H = 2.18 × 10⁻¹⁸ J. Negative sign indicates a bound state lower than free.
Related questions
The electronic configuration of nitrogen ($Z = 7$) in the ground state is:The shape of a p-orbital is best described as:A 3p orbital is specified by:The energy of the electron in the $n = 2$ orbit of hydrogen by Bohr's model is:Per NCERT §2.4.2 (limitations), Bohr's model FAILED to explain which set of phenomena?Per NCERT eqn 2.9, the Rydberg formula for all spectral lines in hydrogen uses a constant Per NCERT Table 2.3, in the hydrogen-atom spectrum the BALMER series corresponds to transiPer NCERT eqn 2.15, the radius of the n-th Bohr orbit for a hydrogen-like ion (one electro