Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
According to Bohr's atomic model, electrons revolve around the nucleus in specific paths called:
Orbits or shells
Nucleons
Energy packets
Cloud zones
Orbits or shells
According to the Bohr atomic model, electrons revolve around the nucleus in stable, discrete circular paths known as orbits or shells. These orbits represent specific energy levels, designated by the principal quantum number n=1,2,3,тАж.
According to the Bohr atomic model, electrons revolve around the nucleus in stable, discrete circular paths known as orbits or shells. These orbits represent specific energy levels, designated by the principal quantum number n=1,2,3,тАж.
Think of these orbits like the rungs of a ladder; you can stand on one rung or another, but you cannot hover in the empty space between them.
KLMN shells: 'Keep Loving MyNucleus' (representing shell indices n=1,2,3,4).
L=2╧АnhтАЛ тАФ Quantization condition for angular momentum
╬ФE=h╬╜ тАФ Energy of a photon emitted during an electronic transition
Bohr proposed that electrons move in orbits where their angular momentum is quantized as L=mvr=2╧АnhтАЛ. While in these permitted orbits, an electron does not radiate energy, maintaining a stationary state. Energy is only emitted or absorbed when an electron jumps between these shells, following the relation ╬ФE=E2тАЛтИТE1тАЛ=h╬╜.
Electrons revolve only in 'stationary orbits' where they do not lose energy.
The energy of an orbit increases as the distance from the nucleus increases.
These shells are often denoted as K, L, M, N... starting from the innermost shell (n=1).
Explained the stability of the atom.
Correctly explained the line spectrum of the hydrogen atom.
Failed to explain the spectra of multi-electron atoms.
Violates the Heisenberg Uncertainty Principle as it assumes a definite path for the electron.
Foundation for understanding atomic emission spectroscopy.
Basis for modern electron configuration models.
The energy of the n-th shell is proportional to тИТn21тАЛ.
Option B refers to protons and neutrons, Option C refers to energy quanta (photons), and Option D describes the Quantum Mechanical model (orbitals).
A is correct тАФ Bohr's model defines these paths as stationary orbits or shells with fixed energy.
In exams, remember that 'Orbits' (Bohr) are circular paths, whereas 'Orbitals' (Quantum Model) are 3D regions of space where probability is highest.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants