Use the following half-life graph to answer the question: Mass Remaining (mg) 60.0 50.0 40.0 30.0 20.0 10.0 0.0 0.0 Half-Life Graph of a Radioactive Isotope 1.0 2.0 3.0 Time (minutes) 4.0 5.0 6.0 When you are left with 6.25 mg of the radioactive isotope, how many half-lives have occurred from time equals zero?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question

#31

 

### Half-Life Graph of a Radioactive Isotope

---

### Use the following half-life graph to answer the question:

---

#### [Graph Title: Half-Life Graph of a Radioactive Isotope]

- **X-Axis: Time (minutes)**
  - The x-axis represents time in minutes, spanning from 0.0 to 6.0 minutes in increments of 1.0 minute.

- **Y-Axis: Mass Remaining (mg)**
  - The y-axis represents the mass remaining in milligrams (mg), ranging from 0.0 to 60.0 mg in increments of 10 mg.

- **Data Points:**
  - At 0.0 minutes, the mass remaining is 60.0 mg.
  - At 1.0 minute, the mass remaining is approximately 30.0 mg.
  - At 2.0 minutes, the mass remaining is approximately 15.0 mg.
  - At 3.0 minutes, the mass remaining is approximately 7.5 mg.
  - At 4.0 minutes, the mass remaining is approximately 3.75 mg.
  - At 5.0 minutes, the mass remaining is approximately 1.875 mg.

The graph shows an exponential decay curve, highlighting the reduction in mass of the radioactive isotope over time.

---

#### Question:
When you are left with 6.25 mg of the radioactive isotope, how many half-lives have occurred from time equal to zero?

---

**To find the half-life:**
1. Start with the initial mass, which is 60 mg at 0.0 minutes.
2. Determine the half-life duration by examining the graph, where each half-life halves the remaining mass.
   - From 60 mg to 30 mg takes 1 minute.
   - From 30 mg to 15 mg takes another 1 minute (total 2 minutes now).
   - From 15 mg to 7.5 mg takes another 1 minute (total 3 minutes now).
   - Thus, the half-life is 1 minute.

Thus, if you are left with 6.25 mg of the radioactive isotope, it would take approximately 4 half-lives (4 minutes) from time equals zero.
Transcribed Image Text:### Half-Life Graph of a Radioactive Isotope --- ### Use the following half-life graph to answer the question: --- #### [Graph Title: Half-Life Graph of a Radioactive Isotope] - **X-Axis: Time (minutes)** - The x-axis represents time in minutes, spanning from 0.0 to 6.0 minutes in increments of 1.0 minute. - **Y-Axis: Mass Remaining (mg)** - The y-axis represents the mass remaining in milligrams (mg), ranging from 0.0 to 60.0 mg in increments of 10 mg. - **Data Points:** - At 0.0 minutes, the mass remaining is 60.0 mg. - At 1.0 minute, the mass remaining is approximately 30.0 mg. - At 2.0 minutes, the mass remaining is approximately 15.0 mg. - At 3.0 minutes, the mass remaining is approximately 7.5 mg. - At 4.0 minutes, the mass remaining is approximately 3.75 mg. - At 5.0 minutes, the mass remaining is approximately 1.875 mg. The graph shows an exponential decay curve, highlighting the reduction in mass of the radioactive isotope over time. --- #### Question: When you are left with 6.25 mg of the radioactive isotope, how many half-lives have occurred from time equal to zero? --- **To find the half-life:** 1. Start with the initial mass, which is 60 mg at 0.0 minutes. 2. Determine the half-life duration by examining the graph, where each half-life halves the remaining mass. - From 60 mg to 30 mg takes 1 minute. - From 30 mg to 15 mg takes another 1 minute (total 2 minutes now). - From 15 mg to 7.5 mg takes another 1 minute (total 3 minutes now). - Thus, the half-life is 1 minute. Thus, if you are left with 6.25 mg of the radioactive isotope, it would take approximately 4 half-lives (4 minutes) from time equals zero.
### Educational Resource

#### Data Correspondence Table

The following table presents a simple list depicting the relationship between different variables labeled as 'a', 'b', 'c', and 'd' with their corresponding numerical values:

| Variable | Value |
|----------|-------|
| a        | 1     |
| b        | 3     |
| c        | 6     |
| d        | 12    |

### Explanation:

- **Variable 'a'**: This variable is associated with the value **1**.
- **Variable 'b'**: This variable is associated with the value **3**.
- **Variable 'c'**: This variable is associated with the value **6**.
- **Variable 'd'**: This variable is associated with the value **12**.

In mathematical terms, this can be visualized as a set of pairs (a, 1), (b, 3), (c, 6), and (d, 12). These values could represent different elements like steps in a sequence, levels in a hierarchy, or any other structured data dependent on the context of the subject matter being taught. For detailed analysis, such values can be plotted on a graph to understand their relations more vividly.
Transcribed Image Text:### Educational Resource #### Data Correspondence Table The following table presents a simple list depicting the relationship between different variables labeled as 'a', 'b', 'c', and 'd' with their corresponding numerical values: | Variable | Value | |----------|-------| | a | 1 | | b | 3 | | c | 6 | | d | 12 | ### Explanation: - **Variable 'a'**: This variable is associated with the value **1**. - **Variable 'b'**: This variable is associated with the value **3**. - **Variable 'c'**: This variable is associated with the value **6**. - **Variable 'd'**: This variable is associated with the value **12**. In mathematical terms, this can be visualized as a set of pairs (a, 1), (b, 3), (c, 6), and (d, 12). These values could represent different elements like steps in a sequence, levels in a hierarchy, or any other structured data dependent on the context of the subject matter being taught. For detailed analysis, such values can be plotted on a graph to understand their relations more vividly.
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Half life
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON