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Atomic Structure and Subatomic Particles

Test your knowledge of atomic structure including cathode rays, canal rays, isotopes, Rutherford's model, and valence electrons.

5 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. Magnitude of charge in canal rays may vary.
  2. Magnitude of charge in cathode rays does not vary.
  3. Mass of the particles in canal rays may vary.
  4. Mass of the particles in cathode rays may vary.
  5. Canal rays possess positive charge.
Question 2 Multiple Choice (Single Answer)

Which of the following elements tend to have their atomic masses in decimals?

  1. Elements having different isotopes
  2. Elements having different isobars
  3. Elements with variable valencies
  4. Elements with tendency to form cations
  5. Elements with tendency to form anions
Question 3 Multiple Choice (Single Answer)

Which of the following limitations in Rutherford's model of atom leads to its failure?

  1. Inability to calculate size of nucleus.
  2. Inability to find charge on nucleus.
  3. Inability to determine radius of atom.
  4. Inability to explain stability of atom.
  5. Inability to determine distribution of charges in atom.
Question 4 Multiple Choice (Single Answer)

Valence electrons of different elements are given below. Which element will have the highest tendency to form anion?

  1. A - valence electrons 2
  2. B - valence electrons 3
  3. X - valence electrons 4
  4. Y - valence electrons 5
  5. Z - valence electrons 7
Question 5 Multiple Choice (Single Answer)

Which of the following is NOT a characteristic of cathode ray?

  1. It consists of charged particles.
  2. It always travels in a straight line.
  3. It moves towards cathode.
  4. It has mass.
  5. It originates from cathode plate.
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