Cards (23)

  • What is the purpose of atomic models?
    Represent atom structure
  • Match the atomic model feature with its corresponding model:
    Electrons orbit randomly ↔️ Rutherford Model
    Electrons orbit in fixed energy levels ↔️ Bohr Model
  • Rutherford's Nuclear Model proposed that the atom has a dense, positively charged nucleus.
    True
  • Steps involved in electron transitions in Bohr's Model
    1️⃣ Electron absorbs photon
    2️⃣ Electron jumps to higher energy level
    3️⃣ Electron emits photon
    4️⃣ Electron returns to lower energy level
  • The Thomson's Plum Pudding Model suggested the atom was a sphere of positive charge with electrons scattered throughout, in contrast to the later Rutherford model.dense
  • The Rutherford's Nuclear Model proposes that electrons orbit the nucleus in various energy levels, similar to planets orbiting a star.nucleus
  • In Bohr's Model, electrons can only occupy discrete energy levels, with each level corresponding to a fixed amount of energy.charge
  • The Bohr Model can explain the emission of discrete spectral lines, unlike the Rutherford Model.
    True
  • Electrons in an atom orbit the nucleus in specific energy levels.

    True
  • The Plum Pudding Model suggested the atom was a sphere of positive charge with electrons scattered throughout
  • In Bohr's Model, electrons orbit the nucleus in specific, circular paths called energy levels or shells
  • What does the Thomson's Plum Pudding Model propose about the atom's structure?
    Uniform positive sphere
  • What is at the center of Rutherford's Nuclear Model?
    Dense, positive nucleus
  • What concept does Bohr's Model introduce that is absent in Rutherford's Model?
    Quantized energy levels
  • Which atomic model proposes that electrons orbit in circular paths at fixed distances?
    Bohr Model
  • The nucleus of an atom contains protons and neutrons
  • What did Thomson's Plum Pudding Model propose about the structure of the atom?
    Uniform positive sphere
  • What is a key concept introduced by Bohr's Model?
    Quantized energy levels
  • What was the main difference between the Plum Pudding Model and the Rutherford Model?
    Location of positive charge
  • In the Thomson's Plum Pudding Model, electrons orbit the nucleus in specific energy levels.
    False
  • Rutherford's Nuclear Model explains the emission of discrete spectral lines.
    False
  • Steps for an electron in Bohr's Model to jump to a higher energy level
    1️⃣ Absorb a photon
    2️⃣ Electron jumps to a higher energy level
    3️⃣ Electron emits a photon when returning to a lower level
  • What key limitation of the Rutherford Model did Bohr's Model address?
    Stability of electron orbits