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Atomic Models of the Atom (Grade 10)

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Atomic Models of the Atom

1. 
Which of the following statements is consistent with Dalton's model of the atom?
  1. The atom contains protons, neutrons, and electrons
  2. The atom has a positive nucleus
  3. The atom contains a positive nucleus with electrons in circular pathways called orbits surrounding the nucleus
  4. The atom is indivisible and can't be destroyed
2. 
Which of the following was observed in Thomson's experiments with cathodes and anodes?
  1. The cathode rays moved towards the cathode, so they consisted of negatively-charged particles
  2. The cathode rays moved towards the anode, so they consisted of negatively-charged particles
  3. The cathode rays moved towards the cathode, so they consisted of positively-charged particles
  4. The cathode rays moved towards the anode, so they consisted of positively-charged particles
3. 
Which of the following models visualized the atom as being a positive mass with negatively-charged particles spread throughout the mass?
  1. Nuclear Model
  2. Orbital Model
  3. Plum Pudding Model
  4. Bohr Model
4. 
What happened to some the alpha particles directed at the gold foil in Rutherford's experiment, when they struck the center of the atoms of gold?
  1. They passed through
  2. They deflected at different angles
  3. Their motion was disrupted, but they continued through the foil
  4. None of the above
5. 
Which of the following conclusions is consistent with the results of the gold foil experiment?
  1. The nucleus has a positive charge of 4
  2. The atom consists of a dense, positively-charged nucleus and an empty surrounding space
  3. The atom has an overall positive charge
  4. The atom consists of electrons and protons
6. 
Which of the following was observed by Niels Bohr?
  1. Heated atoms absorbed energy in the form of light
  2. Atoms lost electrons, when exposed to a stimulus like heat
  3. Atoms gained electrons, when exposed to a stimulus like heat
  4. Heated atoms released energy in the form of light
7. 
Which of the following conclusions is consistent with the Bohr model of the atom?
  1. Electrons exist in fixed circular paths known as orbits
  2. Electrons are most likely to be located in a space known as an orbital
  3. Electrons are randomly spaced out around a positive mass
  4. Electrons are directly adjacent to the nucleus
8. 
Which of the following correctly describes the nature of the atom, according to the wave-mechanical theory?
  1. The atom consists of electrons that move around in circular orbits around the nucleus
  2. The atom consists of empty space and a positively-charged nucleus
  3. The atom consists of electrons that are located with the highest degree of probability in a region known as the orbital
  4. The atom consists of protons, neutrons, and electrons scattered around in the atom in a random fashion
9. 
According to the modern-day understanding of atomic structure, what is the overall charge of the nucleus of an atom?



10. 
According to the Bohr Model, the nucleus was neutral, allowing for the electrons to be held in place.
  1. True
  2. False

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