/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 8 Define half-life.... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 18: Problem 8

Define half-life.

Short Answer

Expert verified
Half-life is the time required for a quantity to decrease to half of its initial value. It is generally used to determine the rate at which radioactive isotopes or chemical reactants decay or disappear. The concept is widely applied in fields like physics, chemistry, biology, pharmacology, and environmental science.

Step by step solution

01

Definition of Half-Life

Half-life in science, primarily in chemistry, and physics, is the time required for a quantity in a particular set of conditions to decrease to half of its initial value. It's frequently used to quantify the rate at which some unstable particles decay or the rate of disappearance of a chemical reactant.
02

Utility of Half-Life

The half-life plays a crucial role in the realm of physics and chemistry; for example, it aids in the approximation of how long a particular isotope will emit radiation into the surroundings. Moreover, it also helps understand and predict the kinetics of chemical reactions.
03

Fields Using the Concept of Half-Life

This concept of half-life is widely used in several fields, such as physics, chemistry, biology, pharmacology, and even in environmental science, where it helps determine the outcomes of various processes over time.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Design an experiment that illustrates the concept of half-life.

Calculate the time required for three- fourths of a sample of cesium-138 to decay given that its half-life is 32.2 \(\mathrm{min} .\)

Describe what happens to unstable nuclei.

What type of radioactive nuclide is injected into a person who is about to undergo a PET scan?

Indicate if the following equations represent fission reactions or fusion reactions. \begin{equation}a. _{1}^{1} \mathrm{H}+_{1}^{2} \mathrm{H} \longrightarrow_{2}^{3} \mathrm{He}+\gamma\end{equation} \begin{equation}b. _{0}^{1} n+_{92}^{235} \mathrm{U} \longrightarrow_{57}^{146} \mathrm{La}+_{35}^{87} \mathrm{Br}+3_{0}^{1} n\end{equation} \begin{equation}c. _{10}^{21} \mathrm{Ne}+_{2}^{4} \mathrm{He} \longrightarrow_{12}^{24} \mathrm{Mg}+_{0}^{1} n\end{equation} \begin{equation}d. _{82}^{208} \mathrm{Pb}+_{58}^{26} \mathrm{Fe} \longrightarrow_{108}^{265} \mathrm{Hs}+_{0}^{1} n\end{equation}
See all solutions

Recommended explanations on Chemistry Textbooks

Kinetics

Read Explanation

Making Measurements

Read Explanation

Chemical Analysis

Read Explanation

Nuclear Chemistry

Read Explanation

Organic Chemistry

Read Explanation

The Earths Atmosphere

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.