(a)
Interpretation:
Association of Antoine Henri Becquerel with the early history of radioactivity has to be determined.
Concept Introduction:
Radioactivity is a nuclear process. It can be defined as the spontaneous disintegration of a nucleus which is done by the emission of radiation. The elements which show this property is said to be radioactive elements.
(a)
Explanation of Solution
Antoine Henri Becquerel (1852-1908) found radioactivity by experiments with uranium and many other substances. He showed a relationship between X rays and the phosphorescence of uranium salts. He performed an experiment in that photographic plate is wrapped with a piece of black paper and then he placed a sample of uranium salt in it and kept it to be exposed in sunlight. As a result, the photographic plate was developed. Then, he repeated that same experiment in the absence of light, and he found that the photographic plate was developed. Thus it was found that uranium salts emitted rays that developed the photographic plate in the absence of sunlight. In this way, the concept of radioactivity was discovered.
(b)
Interpretation:
Associations of Marie Sklodowska Curie and Pierre Curie with the early history of radioactivity have to be determined.
Concept Introduction:
Refer to part (a).
(b)
Explanation of Solution
Marie Sklodowska Curie (1867-1934) and her husband Pierre Curie (1859-1906) performed research in the field of radioactivity. They were renowned chemists. They discovered two new radioactive elements named radium and polonium. They performed their research work on radium. They also performed further investigations on the properties and
(c)
Interpretation:
Association of Wilhelm Conrad Roentgen with the early history of radioactivity has to be determined.
Concept Introduction:
Refer to part (a).
(c)
Explanation of Solution
Wilhelm Conrad Roentgen (1845-1923) was the first person who discovered X rays and studied them systematically. He observed
(d)
Interpretation:
Association of Ernest Rutherford with the early history of radioactivity has to be determined.
Concept Introduction:
Refer to part (a).
(d)
Explanation of Solution
Ernest Rutherford (1871-1937) found that radioactive rays emitted by uranium from his experiment. He was known as the father of
(e)
Interpretation:
Associations of Otto Hahn and Fritz Strassman and their associations with the early history of radioactivity have to be determined.
Concept Introduction:
Refer to part (a).
(e)
Explanation of Solution
Otto Hahn (1879-1968) was a famous scientist in the field of radioactivity. He worked with Fritz Strassman and they discovered the fission of uranium when it was bombarded by a neutron.
Want to see more full solutions like this?
Chapter 18 Solutions
Foundations of College Chemistry 15e Binder Ready Version + WileyPLUS Registration Card
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning