Chapter 5: Q.5.51 (page 164)
Draw the new nucleus when this isotope emits a positron to complete the following:

Short Answer
The new nucleus when this isotope emits a positron is

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Chapter 5: Q.5.51 (page 164)
Draw the new nucleus when this isotope emits a positron to complete the following:

The new nucleus when this isotope emits a positron is

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The hall-life of oxygen- is . If a sample of oxygen- has an activity of , hos many minutes will elapse before it has an activity of ?
Complete each of the following nuclear equations:
a.
b.
c.
d.
Bone and bony structures contain calcium and phosphorus.
a. Why would the radioisotopes calcium and phosphorus- be used in the diagnosis and treatment of bone diseases?
b. During nuclear tests, scientists were concerned that strontium-, a radioactive product, would be harmful to the growth of bone in children. Explain.
On Naturally occurring potassium consists of three isotopes: potassium-39, potassium-40, and potassium-41.
a. Write the atomic symbol for each isotope.
b. In what ways are the isotopes similar, and in what ways do they differ?
Determine the number of protons and number of neutrons in the nucleus of each of the following:
a. boron-
b. zinc-
c. iron-
d. gold-
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