7.1 Atomic Physics
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Atomic Physics - nuclear atom
- 1.In the Geiger Marsden experiment, alpha particles are scattered by gold nuclei. The experimental results indicate that most alpha particles are:
- A.
Scattered only at small angles
- B.
Scattered only at large angles
- C.
Absorbed in the target
- D.
Scattered back along the original direction
- 2.In the Geiger Marsden experiment, nearly all α particles went through without deviating. What may be concluded from this observation?
- 3.In the Geiger Marsden experiment, occasionally an alpha particle bounced back off the gold leaf. What may be concluded from this observation?
- 4.Ag-102, Ag-103 and Ag-104 are three isotopes of the element silver. Which one of the following is a true statement about the nuclei of these isotopes?
- A.
All have the same mass.
- B.
All have the same number of nucleons.
- C.
All have the same number of neutrons.
- D.
All have the same number of protons.
- 5.The existence of isotopes provides evidence for the presence of
- A.
Electrons in atomic energy levels.
- B.
Electrons in the nuclei of atoms.
- C.
Neutrons in the nuclei of atoms.
- D.
Protons in the nuclei of atoms.
- 6.Which of the following provides evidence for the existence of atomic energy levels?
- A.
Alpha-particle scattering
- B.
Continuous emission spectra
- C.
Discrete energies of gamma radiation
- D.
Line absorption spectra
- 7.Which of the following identifies the significant interaction(s) between nucleons inside the nucleus?
- A.
Nuclear only
- B.
Coulomb only
- C.
Weak Nuclear and Coulomb
- D.
Gravitational, nuclear and Coulomb
- E.
Strong Nuclear and Coulomb
- 8.The Geiger-Marsden alpha particle scattering experiment provides evidence for the existence of
- A.
Atomic nuclei.
- B.
Neutrons.
- C.
Protons.
- D.
Nuclear energy levels.
- 9.The number of nucleons in a nucleus is the number of
- A.
Particles in the nucleus.
- B.
Neutrons in the nucleus.
- C.
Protons in the nucleus.
- D.
Protons plus neutrons in the nucleus.
- 10.The atomic line spectra of elements provides evidence for the existence of
- A.
Protons
- B.
Electrons
- C.
Neutrons
- D.
Quantized energy states within nuclei
- E.
Quantized energy states within atoms
- 11.Are there any problems you have had with this topic? Are there any specific parts you want me to go over in class?
Questions: 15 | Attempts: 1812 | Last updated: Dec 12, 2013
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