Test On Chapter 25 Nuclear Chemistry
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Nuclear Chemistry is quite an interesting field of study, both for the fact that it is scary and informative at the same time. Find out how much you know. If you are prepared to test your knowledge try it out.
- 1.How does an unstable nuclues release energy?
- A.
By emitting raduation before radioactive decay
- B.
By emitting raduation after radioactive decay
- C.
By emitting raduation during radioactive decay
- D.
By emitting raduation in between radioactive decay
- 2.What are the three main types of nucear radiation?
- A.
Alpha , beta , gamma
- B.
Fusion, fission , fassion
- C.
Half life, radioisotope, scuntillation
- D.
Transmutation, transuranium, geiger
- 3.What part of an atom undergoes change during radioactive decay?
- A.
Neutron
- B.
Electron
- C.
Proton
- D.
Nucleus
- 4.How is an atomic number of a nucleus changed by alpha decay?
- A.
The atomic number decreases by two
- B.
The atomic number decreases by one
- C.
The atomic number decreases by three
- D.
The atomic number decreases by zero
- 5.How is the atomic number of a nucleus changed by beta decay?
- A.
The atomic number increases by threee
- B.
The atomic number increases by two
- C.
The atomic number increases by one
- D.
The atomic number increases by zero
- 6.How is the atomic number of a nucleus changed by gamma decay?
- A.
The emission of gamma radiation changes the atomic number by two.
- B.
The emission of gamma radiation changes the atomic number by one.
- C.
The emission of gamma radiation does change the atomic number.
- D.
The emission of gamma radiation does not change the atomic number.
- 7.How is the atomic mass number of a nucleus changed by alpha decay?
- A.
Mass number decreases by two
- B.
Mass number decreases by four
- C.
Mass number increases by four
- D.
Mass number increases by two
- 8.How is the atomic mass of a nucleus changed by beta decay?
- A.
The mass number changes by one
- B.
The mass number will change
- C.
The mass number will change by two
- D.
The mass number does not change
- 9.How is the atomic mass number of the nucleus changed by gamma delay?
- A.
The emission of gamma radiation does change the mass number.
- B.
The emission of gamma radiation does not change the mass number.
- C.
The emission of gamma radiation increases the mass number by two.
- D.
The emission of gamma radiation decreases the mass number.
- 10.Which of the three kinds of radiation described in this section in the most penetrating?
- A.
Alpha radiation
- B.
Gamma radiation
- C.
Beta radiation
- 11.Atomic numbers _________________.
- A.
Not charged
- B.
Repell
- C.
Charge
- D.
Balanced
- 12.Mass numbers must be __________________.
- A.
Charged
- B.
Unbalanced
- C.
Repell
- D.
Balanced
- 13.What particles in an atom are involved in chemical reactions?
- A.
Nuclei electron
- B.
Valence electrons
- C.
Nuclear nucleus
- D.
Radioisotopes
- 14.What element was named in honor of the Curies and is it radioactive ?
- A.
Curium, yes
- B.
Carbon, yes
- C.
Radium, yes
- D.
Uranium,yes
- 15.______________involves the transfer or sharing of elcetrons;the nuclei remains unchanged
- A.
Nuclear reactions
- B.
Chemical reactions
- 16.___________ involves changes in the nuclei of the atoms.
- A.
Chemical reactions
- B.
Nuclear reactions
- 17.What is radiation?
- A.
The penetrating rays and positive particles emitted by a radioactive source.
- B.
The penetrating rays and particles emitted by a radioactive source.
- C.
The non-penetrating rays and particles emitted by a radioactive source.
- D.
The penetrating rays and particles emitted by a non-radioactive source.
- 18._________________ worked with Marie and Pierrie to study the ability of uranium salts that had been exposed to sunlight to fog photographic film plates.
- A.
Megana
- B.
March
- C.
Granger
- D.
Becquerel
- 19.What makes a nucleus unstable?
- A.
It has too many or too few neutrons relative to the number of electrons.
- B.
It has too many or too few neutrons relative to the number of protons.
- C.
It has too many or too few neutrons relative to the number of neutrons.
- 20.Which kind of particle would need to be emitted to balance the equation?
- A.
Positron
- B.
Neutron
- C.
Electron
- D.
Proton
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