Atoms Molecules and Ions Multiple Choice Questions and Answers 3 PDF Download

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MCQs on Atoms Molecules and Ions Worksheets 3 Quiz PDF Download

MCQ: Dalton's model of atom states that an atom is

  1. very small
  2. hard sphere
  3. indivisible
  4. all of above

D

MCQ: Number of protons and electrons in an atom is

  1. different
  2. same
  3. average
  4. constant

B

MCQ: Electrons orbiting around nucleus bear

  1. positive charge
  2. negative charge
  3. no charge
  4. neutral charge

B

MCQ: An atom's model that atom is composed of electrons surrounded by a group of positive charge to balance electrons' negative charges is called

  1. Thomson's Model
  2. Rutherford's Model
  3. Dalton's Model
  4. Bohr's Model

A

MCQ: Positively charged particles of an atom are called

  1. protons
  2. neutrons
  3. electrons
  4. charges

A