NEET UG Atoms — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG Atoms in the app →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:In the Geiger–Marsden α-scattering experiment, the observation that MOST α-particles passed nearly UNDEFLECTEDBohr's FIRST postulate of the hydrogen atom states thatIn the Bohr model of the hydrogen atom, the energy of an electron in the $n^\text{th}$ orbit is given by $E_n Bohr's quantisation condition for the angular momentum $L$ of an electron in the $n^\text{th}$ orbit isWhen the electron in a hydrogen atom makes a transition from $n = 2$ (first excited state) DIRECTLY back to $nIn the Bohr model, the radius of the $n^\text{th}$ orbit of a hydrogen-LIKE atom of atomic number $Z$ is $r_n An $\alpha$-particle of energy $7.7\,\text{MeV}$ is directed head-on at a stationary gold nucleus ($Z = 79$). The ratio of the first excitation energy of a hydrogen atom ($E_2 - E_1$) to its ionisation energy from the grIn the Bohr model, an electron transitions from $n = 3$ to $n = 2$ in a hydrogen atom (the H-α line of the BalIn the Bohr model, the velocity of an electron in the $n^\text{th}$ orbit of hydrogen is given by $v_n \proptoAccording to de Broglie's interpretation of Bohr's quantisation, the circumference of the $n^\text{th}$ stableA photon of wavelength $\lambda = 102.6\,\text{nm}$ is incident on a ground-state hydrogen atom. The atom can