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AP Intermediate 2nd Year Atoms and Nuclei — practice questions — page 2

Explore 82 free Atoms and Nuclei questions in AP Intermediate 2nd Year Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Atoms and Nuclei questions and exercises with answers

Showing questions 31–60 of 82.

True or false: the nucleusRead the answer and worked solution →Order the argument: why Rutherford's atom should collapseRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Assertion and reason: modelsRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Flip and pair: problem with the model that solved itRead the answer and worked solution →Which iso- term is itRead the answer and worked solution →Order the three decaysRead the answer and worked solution →Judge the assertion and the reasonRead the answer and worked solution →Type the nuclear numbersRead the answer and worked solution →Spot the false statementRead the answer and worked solution →Complete the size of the nucleusRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →The minimum wavelength $\lambda_{\min}$ in the continuous X-ray spectrum of an X-ray tube depends only onRead the answer and worked solution →Flip and pair: problem with the model that solved itRead the answer and worked solution →NEET · Physics · Bohr-Atom Transitions — Energy OrderRead the answer and worked solution →Which model does this belong to?Read the answer and worked solution →Bohr's postulatesRead the answer and worked solution →True or false: the nucleusRead the answer and worked solution →Charge and neutralityRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Tap every problem Bohr's model was built to solveRead the answer and worked solution →Flip and pair: model with its pictureRead the answer and worked solution →Strength or weakness?Read the answer and worked solution →Reading the models backRead the answer and worked solution →Assertion and reason: modelsRead the answer and worked solution →True or false: line spectraRead the answer and worked solution →Bohr's postulate quantises the angular momentum of an electron in a stationary orbit asRead the answer and worked solution →Which spectral series of hydrogen lies in the visible region of the electromagnetic spectrum?Read the answer and worked solution →Explained, or left unexplained?Read the answer and worked solution →

Worked practice questions

True or false: the nucleus

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Questions
  1. Statement is true
    Yes
    Statement
    Most of the atom's mass is in the nucleus.
  2. Statement is true
    Yes
    Statement
    All the positive charge is in the nucleus.
  3. Statement is true
    No
    Statement
    The nucleus fills most of the atom's volume.
  4. Statement is true
    Yes
    Statement
    Electrons revolve around the nucleus in this model.
  5. Statement is true
    Yes
    Statement
    The atom overall is electrically neutral.
Small, dense, and carrying all the positive charge. Source: syllabus Physics, Ch 12 Atoms.

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Order the argument: why Rutherford's atom should collapse

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Steps
  1. An electron revolving in a circle is accelerating
  2. An accelerating charge radiates energy
  3. Radiating away energy shrinks the orbit
  4. The electron would spiral into the nucleus
  5. So the model predicts atoms cannot last, which contradicts observation
The chain the chapter sets out. Source: syllabus Physics, Ch 12 Atoms.

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Two are true, one is not

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Questions
  1. False statement
    Rutherford's electron is stable
    Statements
    1. An accelerating charge radiates
    2. Rutherford's electron should spiral in
    3. Rutherford's electron is stable
  2. False statement
    Bohr's orbits radiate continuously
    Statements
    1. Bohr's orbits radiate continuously
    2. Bohr's orbits do not radiate
    3. Bohr explained line spectra
  3. False statement
    They are continuous bands
    Statements
    1. Line spectra are isolated lines
    2. They are continuous bands
    3. They carry structural information
The false line reverses a model's outcome. Source: syllabus Physics, Ch 12 Atoms.

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