Chemistry: Atomic Structure and Isotopes
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Questions and Answers

Which element has a proton number equal to 26?

  • Carbon (C)
  • Gold (Au)
  • Silver (Ag)
  • Iron (Fe) (correct)
  • What type of spectrum will be observed if an electron continuously moves towards the nucleus in a hydrogen atom?

  • Discrete spectrum
  • Continuous spectrum (correct)
  • Emission spectrum
  • Absorption spectrum
  • Which series in the hydrogen spectrum is visible to the human eye?

  • Lyman series
  • Brackett series
  • Balmer series (correct)
  • Paschen series
  • According to Heisenberg's uncertainty principle, what is true for the position and momentum of very small particles?

    <p>They cannot both be precisely measured simultaneously</p> Signup and view all the answers

    What happens to the wave nature of a particle as its mass increases?

    <p>It decreases</p> Signup and view all the answers

    Which element is represented by the notation +3 = 26?

    <p>Iron</p> Signup and view all the answers

    What is the relationship between wave nature and particle nature?

    <p>Wave nature is inversely proportional to particle nature</p> Signup and view all the answers

    Which of the following does not have electrons?

    <p>Proton (H+)</p> Signup and view all the answers

    Study Notes

    Atomic Structure and Properties

    • The maximum value of A is n.

    Identification of the Element

    • +3 indicates an atomic number of 26, which corresponds to Iron (Fe).

    Spark and Isotone

    • Isotone is related to spark.

    Established Principle

    • Established: electrons are present, but H+ has no electrons, so Bohr's theory does not apply to H+, but it does to other elements.

    Energy Spectrum

    • If the electron in a H atom is continuously moving towards the nucleus, the energy spectrum that would be observed is Continuous Spectrum.

    Hydrogen Spectrum

    • The visible series in the hydrogen spectrum is called the Balmer Series.

    Wave-Particle Duality

    • The relationship between the wave and particle nature of a microscopic particle is inversely proportional, i.e., as the mass of the particle increases, its wave nature decreases.

    Uncertainty Principle

    • Heisenberg's Uncertainty Principle is applicable to microscopic particles.

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    Description

    Practice quiz on atomic structure, isotopes, and chemical elements, covering topics such as proton number, electrons, and atomic models.

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