Transcript Chapter 4
Chemistry for Changing Times, 11th edition
John W. Hill and Doris K. Kolb
Chapter 4: Nuclear Chemistry: The
Heart of the Matter
James A. Noblet
California State University
San Bernardino, CA
2007 Prentice Hall
Most of our exposure to ionizing radiation is from natural
sources, the majority of which is due to this element:
1.
2.
3.
4.
5.
Radium
Uranium
Radon
Plutonium
Carbon-14
Most of our exposure to ionizing radiation is from natural
sources, the majority of which is due to this element:
1.
2.
3.
4.
5.
Radium
Uranium
Radon
Plutonium
Carbon-14
When an electron is emitted during a radioactive decay
process, it is referred to as:
1.
2.
3.
4.
5.
Alpha decay
Beta decay
Gamma decay
Delta decay
Sigma decay
When an electron is emitted during a radioactive decay
process, it is referred to as:
1.
2.
3.
4.
5.
Alpha decay
Beta decay
Gamma decay
Delta decay
Sigma decay
Which of the following types of radiation has the greatest
penetrating power?
1.
2.
3.
4.
5.
Alpha
Beta
Ultraviolet
X-ray
Gamma
Which of the following types of radiation has the greatest
penetrating power?
1.
2.
3.
4.
5.
Alpha
Beta
Ultraviolet
X-ray
Gamma
If you have 16 g of a radioactive isotope, how much will be
left after three half-lives?
1.
2.
3.
4.
5.
1g
2g
4g
6g
8g
If you have 16 g of a radioactive isotope, how much will be
left after three half-lives?
1
general formula n ,
2
w heren no. of half - lives
1 1 1 1 1
3
2
2 2 2 8
1.
2.
3.
4.
5.
1g
2g
4g
6g
8g
The nuclear reaction transforming gold-179 into
iridium-175 is an example of what type of decay?
179
79
Au Ir ?
175
77
1. Alpha
2. Beta
3. Gamma
4. Positron
5. Electron capture
The nuclear reaction transforming gold-179 into
iridium-175 is an example of what type of decay?
179
79
Au Ir He
175
77
4
2
1. Alpha
2. Beta
3. Gamma
4. Positron
5. Electron capture