Target NEET 2024 | One Shot Series | Chemistry | Structure of Atom - Part 2 | XYLEM NEET

Xylem NEET2 minutes read

The text discusses the uncertainty principle, Pauli Exclusion Principle, and orbital angular momentum in relation to quantum mechanics, highlighting the relationship between momentum, position, and energy in subatomic particles. It also explains the restrictions on electron configuration in atoms and the mathematical formulas used to calculate orbital angular momentum and the number of subshells within an atom.

Insights

  • The Uncertainty Principle links momentum change to Planck's constant divided by 4 Pi and indicates that a 5% uncertainty in velocity corresponds to a minuscule 1.1 x 10^-33 meters uncertainty in position.
  • The Pauli Exclusion Principle enforces that electrons within an atom must possess distinct quantum number values, preventing the duplication of sets within the same atom and contributing to the fundamental structure of matter.

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Recent questions

  • What is the Uncertainty Principle?

    The Uncertainty Principle states that the momentum change is equal to H by 4 Pi, with Delta V being negative and equal to H by 4 Pi.

  • How does the uncertainty in velocity affect position?

    An uncertainty in velocity of 5% results in an uncertainty in position of 1.1 x 10^-33 meters.

  • What does the Pauli Exclusion Principle state?

    The Pauli Exclusion Principle dictates that no two electrons in an atom can have the same set of quantum number values.

  • How is orbital angular momentum determined?

    Orbital angular momentum is determined by the formula root of L into L plus 1 into H dash, where L ranges from 0 to n minus 1.

  • How many subshells are associated with n equal to 4?

    For n equal to 4, there are 8 subshells ranging from -2 to 3.

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Summary

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Quantum Principles and Atomic Structure Explained

  • Uncertainty principle states that momentum change is equal to H by 4 Pi, with Delta V being negative and equal to H by 4 Pi.
  • The uncertainty in velocity, given as 5%, results in an uncertainty in position of 1.1 x 10^-33 meters.
  • The Pauli Exclusion Principle dictates that no two electrons in an atom can have the same set of quantum number values.
  • Orbital angular momentum is determined by the formula root of L into L plus 1 into H dash, where L ranges from 0 to n minus 1.
  • The number of subshells associated with n equal to 4 includes values from -2 to 3, with a total of 8 subshells.
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