JEE Advanced Atoms — practice questions
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The figure depicts an early atomic model. In thiAccording to the Bohr model, the ground-state energy of a hydrogen atom is:
The figure depicts Rutherford's $\alpha$-particlAn electron in a hydrogen atom transitions from $n = 3$ to $n = 2$. Calculate the wavelength of the emitted ra
The figure shows the hydrogen spectral series. TAccording to Bohr's model, the radius of the $n$-th orbit of a hydrogen atom is proportional to $n^2$. If the The modern periodic law states that the physical and chemical properties of elements are periodic functions ofElements of the modern periodic table are classified into how many blocks based on the differentiating electroAcross a period from left to right, the atomic radius generally:Which element has the highest first ionization energy in period 2?Which of the following arrangements is in correct order of increasing electronegativity (Pauling scale)?The element with electronic configuration $1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^{10} 4p^3$ belongs to which group Rutherford's $\alpha$-particle scattering experiment established the existence ofBohr's postulate quantises the angular momentum of an electron in a stationary orbit asWhich spectral series of hydrogen lies in the visible region of the electromagnetic spectrum?The minimum wavelength $\lambda_{\min}$ in the continuous X-ray spectrum of an X-ray tube depends only onWhen an electron in a hydrogen atom is excited to $n = 4$, the total number of distinct spectral lines that caThe ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series of hydrThe radius of the $n$th Bohr orbit in a hydrogen-like atom of nuclear charge $Z$ scales asIn a hydrogen atom, the energy of the electron in the $n$th orbit is $E_n = -\tfrac{13.6}{n^2}\,\text{eV}$. ThAccording to Moseley's law, $ qrt{\nu} = a(Z - b)$ for the characteristic X-ray lines. If two elements emit $KThe de Broglie wavelength $\lambda$ of an electron in the $n$th Bohr orbit of hydrogen, in terms of the orbit The ionisation energy of a hydrogen atom is $13.6\,\text{eV}$. The energy required to remove the only electronA hydrogen atom in its ground state absorbs a photon of energy $12.75\,\text{eV}$. The maximum number of disti
The diagram above is the schematic of an X-ray t
The graph above shows the intensity of X-rays vs
The figure shows the de Broglie standing-wave co
The icons above show Thomson's plum-pudding mode
The figure shows the K, L, and M electron shellsAccording to VSEPR theory, the shape of a molecule is determined byThe hybridisation of carbon in methane (CH₄) isWhich molecule is non-polar despite having polar bonds?The bond order of the oxygen molecule O₂ (by molecular orbital theory) isA coordinate (dative) bond differs from a normal covalent bond in thatWhich species has sp hybridisation on the central atom?As bond order increases, bond lengthAn ionic bond forms byThe shape of NH₃ is pyramidal rather than planar becauseWhich has the highest dipole moment?Among the following, which is paramagnetic?Formal charge on an atom = The most striking result of Rutherford's gold-foil experiment that killed the Thomson model was:The energy of the $n = 3$ level of hydrogen is:In the Bohr model, the radius of the $n$th orbit of hydrogen scales as:The Balmer series of hydrogen corresponds to transitions: