Q1ChemistryUnit 2: Atomic Structure
Rutherfords alpha particle scattering
experiment concluded that:
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Bohr model of a hydrogen atom: its postulates, derivation of the relations for the energy of the electron and radii of the different orbits, limitations of Bohr's model MCQs for JEE
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Q2ChemistryUnit 2: Atomic Structure
From the -particle scattering
experiment, Rutherford concluded that:
This question has multiple correct options
Q3ChemistryUnit 2: Atomic Structure
In a certain Bohr orbit, the total energy
is For this orbit, the kinetic
energy, and potential energy are
respectively:
Q4ChemistryUnit 2: Atomic Structure
The frequency of in the first Bohr orbit in a H-atom is:
Q5ChemistryUnit 2: Atomic Structure
Some hydrogen-like atom in ground state absorb photons having the same energy and on de-excitation, it
emits exactly photons. Then the energy of absorbed photon may be:
This question has multiple correct options
Q6ChemistryUnit 2: Atomic Structure
When alpha particles are sent through a thin metal foil, most of them go straight through the foil because:
Q7ChemistryUnit 2: Atomic Structure
The force which is responsible for circular motion of electrons around the
nucleus is
Q8ChemistryUnit 2: Atomic Structure
From Bohr's model, radius of the orbit
and energy of the hydrogen atom are
calculated as:
This question has multiple correct options
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Notes & Formulas
Nature of electromagnetic radiation, photoelectric effect, spectrum of the hydrogen atom
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Various quantum numbers (principal, angular momentum and magnetic quantum numbers) and their significance
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