MASTERING CHEMISTY NVCC ACCESS CODE
MASTERING CHEMISTY NVCC ACCESS CODE
1st Edition
ISBN: 9780136444459
Author: Tro
Publisher: PEARSON
Question
Book Icon
Chapter 20, Problem 1E
Interpretation Introduction

To determine:

The term radioactivity, and discovery of radioactivity.

Expert Solution & Answer
Check Mark

Answer to Problem 1E

Solution:

The process in which the unstable nuclei of an atom attains stability by loss of energy (in terms of mass) by emitting radiations, which can be beta particle, alpha particle, positron etc is said to be radioactivity.

Radioactivity was discovered by Henri Becquerel.

Explanation of Solution

The process in which the unstable nuclei of an atom attains stability by loss of energy (in terms of mass) by emitting radiations, which can be beta particle, alpha particle, positron etc is said to be radioactivity.

In 1896, Henri Becquerel used naturally fluorescent minerals in order to study the properties of X-rays. He believed that uranium will absorb the sun’s energy and then emitted it as x-rays so, he performed an experiment in which he exposed the potassium uranyl sulphate to sunlight and then placed it on photographic plates which were wrapped in black paper but this experiment “failed”. Becquerel decided to develop photographic plates, the results were surprising as the images were clear and strong, which proved that radiations are emitted from uranium without any external source of energy like sun. So, Becquerel discovered the property of a radioactivity.

Conclusion

Uranium crystals are the source of emmisons. In this way the phenomenon of radioactivity was discovered.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Calculating the pH at equivalence of a titration A chemist titrates 210.0 mL of a 0.1003 M hydrobromic acid (HBr) solution with 0.7550M KOH solution at 25 °C. Calculate the pH at equivalence. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added. pH = ] ☑ o0o 18 Ar
Do you do chemistry assignments
Using the conditions of spontaneity to deduce the signs of AH and AS Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions A This reaction is always spontaneous, but proceeds slower at temperatures above 120. °C. ΔΗ is (pick one) AS is (pick one) ΔΗ is (pick one) B This reaction is spontaneous except above 117. °C. AS is (pick one) ΔΗ is (pick one) This reaction is slower below 20. °C than C above. AS is |(pick one) ? 18 Ar 1

Chapter 20 Solutions

MASTERING CHEMISTY NVCC ACCESS CODE

Ch. 20 - Prob. 11ECh. 20 - Prob. 12ECh. 20 - Prob. 13ECh. 20 - Prob. 14ECh. 20 - Prob. 15ECh. 20 - Prob. 16ECh. 20 - Prob. 17ECh. 20 - Prob. 18ECh. 20 - Prob. 19ECh. 20 - Prob. 20ECh. 20 - Prob. 21ECh. 20 - Prob. 22ECh. 20 - Prob. 23ECh. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Prob. 26ECh. 20 - Prob. 27ECh. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - Prob. 32ECh. 20 - Prob. 33ECh. 20 - Prob. 34ECh. 20 - Prob. 35ECh. 20 - Prob. 36ECh. 20 - Prob. 37ECh. 20 - Prob. 38ECh. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - Prob. 41ECh. 20 - Prob. 42ECh. 20 - Prob. 43ECh. 20 - Prob. 44ECh. 20 - Prob. 45ECh. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Prob. 50ECh. 20 - Prob. 51ECh. 20 - Prob. 52ECh. 20 - Prob. 53ECh. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - Prob. 56ECh. 20 - Prob. 57ECh. 20 - Prob. 58ECh. 20 - Prob. 59ECh. 20 - Prob. 60ECh. 20 - Prob. 61ECh. 20 - Prob. 62ECh. 20 - Prob. 63ECh. 20 - Prob. 64ECh. 20 - Prob. 65ECh. 20 - Prob. 66ECh. 20 - Prob. 67ECh. 20 - Prob. 68ECh. 20 - Prob. 69ECh. 20 - Prob. 70ECh. 20 - Prob. 71ECh. 20 - Prob. 72ECh. 20 - Prob. 73ECh. 20 - Prob. 74ECh. 20 - Prob. 75ECh. 20 - Prob. 76ECh. 20 - Prob. 77ECh. 20 - Prob. 78ECh. 20 - Prob. 79ECh. 20 - Prob. 80ECh. 20 - Prob. 81ECh. 20 - Prob. 82ECh. 20 - Prob. 83ECh. 20 - Prob. 84ECh. 20 - Prob. 85ECh. 20 - Prob. 86ECh. 20 - Prob. 87ECh. 20 - Prob. 88ECh. 20 - Prob. 89ECh. 20 - Prob. 90ECh. 20 - Prob. 91ECh. 20 - Prob. 92ECh. 20 - Prob. 93ECh. 20 - Prob. 94ECh. 20 - Prob. 95ECh. 20 - Prob. 96ECh. 20 - Prob. 97ECh. 20 - Prob. 98ECh. 20 - Prob. 99ECh. 20 - Prob. 100ECh. 20 - Prob. 101ECh. 20 - Prob. 102ECh. 20 - Prob. 103ECh. 20 - Prob. 104ECh. 20 - Prob. 105ECh. 20 - Prob. 106ECh. 20 - Prob. 107ECh. 20 - Prob. 108ECh. 20 - Prob. 109ECh. 20 - Prob. 110ECh. 20 - Prob. 111ECh. 20 - Prob. 112ECh. 20 - Prob. 113ECh. 20 - Prob. 114ECh. 20 - Prob. 115ECh. 20 - Prob. 1SAQCh. 20 - Prob. 2SAQCh. 20 - Prob. 3SAQCh. 20 - Prob. 4SAQCh. 20 - Prob. 5SAQCh. 20 - Prob. 6SAQCh. 20 - Prob. 7SAQCh. 20 - Prob. 8SAQCh. 20 - Prob. 9SAQCh. 20 - Prob. 10SAQ
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Text book image
Introductory Chemistry: An Active Learning Approa...
Chemistry
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Cengage Learning
Text book image
Living By Chemistry: First Edition Textbook
Chemistry
ISBN:9781559539418
Author:Angelica Stacy
Publisher:MAC HIGHER
Text book image
Chemistry In Focus
Chemistry
ISBN:9781337399692
Author:Tro, Nivaldo J.
Publisher:Cengage Learning,
Text book image
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Text book image
World of Chemistry, 3rd edition
Chemistry
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Brooks / Cole / Cengage Learning