Atomic And Nuclear Physics Hardest Quiz!
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What we have here is considered atomic and nuclear physics hardest quiz! A lot of people are confused about what makes atomic and nuclear physics is centered on. While one focuses on the atom the other focuses n protons and neutrons in the nucleus. Do you know the different types of energy and how they are obtained? The quiz below will be a perfect refresher for you. Do give it a try and see how well you do!
- 1.In the Geiger-Marsden experiment, α particles are scattered by gold nuclei. The experimental results indicate that most α 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.A sample of radioactive carbon-14 decays into a stable isotope of nitrogen. As the carbon-14 decays, the rate at which the amount of nitrogen is produced.
- A.
Decreases linearly with time
- B.
Increases linearly with time
- C.
Decreases exponentially with time
- D.
Increases exponentially with time
- 3.Which one of the following provides direct evidence for the existence of discrete energy levels in an atom?
- A.
The continuous spectrum of the light emitted by a white-hot metal
- B.
The line emission spectrum of a gas at low pressure
- C.
The emission of gamma radiation from radioactive atoms
- D.
The ionization of gas atoms when bombarded by alpha particles
- 4.A sample of material initially contains atoms of only one radioactive isotope. Which one of the following quantities are reduced to one half of its initial value during a time equal to the half-life of the radioactive isotope?
- A.
Total mass of the sample
- B.
Total number of atoms in the sample
- C.
Total number of nuclei in the sample
- D.
Activity of the radioactive isotope in the sample
- 5.In a fission chain reaction
- A.
Energy from one fission reaction causes further fission reactions
- B.
Nuclei produced in one fission reaction cause further fission reactions
- C.
Neutrons from one fission reaction cause further fission reactions
- D.
Gamma radiation produced in one fission reaction causes further fission reactions
- 6.Which one of the following correctly identifies the atomic (proton) number and mass (nucleon) number of a nucleus that has neutrons n and protons p? Atomic number Mass number A. p n B. p n + p C. n p D. n + p p
- A.
A
- B.
B
- C.
C
- D.
D
- 7.Isotopes provide evidence for the existence of
- A.
Protons
- B.
Electrons
- C.
Nuclei
- D.
Neutrons
- 8.An isotope of radium has a half-life of 4 days. A freshly prepared sample of this isotope contains N atoms. The time taken for 7N/8 of the atoms of this isotope to decay is
- A.
32 days
- B.
16 days
- C.
12 days
- D.
8 days
- 9.The presence of neutrons inside the nucleus is supported by the existence of
- A.
Isotopes
- B.
Orbiting electrons
- C.
Gamma radiation
- D.
Neutral atoms
- 10.The source of the Sun’s energy is
- A.
Fission
- B.
Radioactivity
- C.
Fusion
- D.
Ionization
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