JEE MAINS 2024: Important Points to Revise Before Exam-Atomic Structure
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JEE MAINS 2024: Important Points to Revise Before Exam-Atomic Structure

Neetu Avinesh0Tagged , , , ,

This Blog will help you to revise the Topic- Atomic Structure of Chemistry for your JEE Mains 2024 exam. Learn and remember these points for your last month’s revision for JEE Mains 2024.

Bohr’s Model:

  • Electrons orbit the nucleus at fixed energy levels.
  • Each energy level has a specific energy associated with it.
  • Electrons emit or absorb energy as they move between energy levels.

Quantum Numbers:

  • Principal Quantum Number (n): Energy level of an electron.
  • Azimuthal Quantum Number (l): Shape of the orbital.
  • Magnetic Quantum Number: Orientation of the orbital.
  • Spin Quantum Number: Electron spin.

Electronic Configuration:

  • Aufbau principle: Electrons fill the lowest energy orbitals first.
  • Pauli exclusion principle: No two electrons in an atom have the same set of quantum numbers.
  • Hund’s rule: Electrons occupy orbitals singly before pairing up.

Heisenberg’s Uncertainty Principle:

  • Impossible to simultaneously know the exact position and momentum of a particle.

Schrodinger Wave Equation:

  • Describes the behavior of electrons in an atom.
  • Solutions provide wave functions, indicating the probability density of finding electrons.

Quantum Mechanical Model:

  • Describes electron behavior using wave functions and orbitals.
  • Orbitals are regions of high electron probability.

Periodic Trends:

  • Ionization energy increases across a period and decreases down a group.
  • Atomic size increases down a group and decreases across a period.

Spectral Lines:

  • Emission spectra: Lines when electrons transition to lower energy levels.
  • Absorption spectra: Lines when electrons absorb energy and move to higher energy levels.

Isotopes and Isotopic Notation:

  • Isotopes have the same number of protons but different numbers of neutrons.
  • Represent isotopes with isotopic notation.

Avogadro’s Number and Mole Concept:

  • Avogadro’s number (6.022 x 10^23) represents one mole of entities (atoms, molecules, ions).
  • Molar mass is the mass of one mole of a substance in grams.

Bohr vs. Quantum Mechanical Model:

  • Bohr’s model has fixed orbits; the quantum model describes electrons using probability.

Read this Practice Resouces for JEE Mains 2024 Blog at GOF Academy to learn about IIT-JEE MAINS 2024 Textbooks, Reference Books, and online resources.

JEE Mains 2024 Previous Year Question Papers

Previous Year’s JEE Mains Question Papers are available on the GOF Academy website. Visit the website to learn more about JEE Mains 2024.

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