Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 1R
What is a chemical element?
Expert Solution & Answer
Summary Introduction
To review:
Chemical element.
Introduction:
Chemical element constitutes all the matter in the universe. In chemistry, the term element refers a substance whose atoms have the same atomic number. In nuclear chemistry, a pure element consists of only one stable isotope.
Explanation of Solution
A chemical element is a material which cannot be decomposed into simpler substance using chemicals. The elements are the basic chemical unit of matter. Of 118 identified elements, 94 are known to occur naturally and others are synthetic elements. Each element is represented by its atomic number, its element name, or symbol. For example, symbol for hydrogen is H and carbon is C. On earth the most abundant elements are oxygen, iron, hydrogen, and helium. Atoms of an element may be produced by the process of fusion, fission, or radioactive decay. Other examples of elements include hydrogen, gold, sulfur, oxygen, uranium, iron, argon, and titanium.
Conclusion
The chemical elements on earth varies from air to crust to ocean.
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Chapter 2 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 2 - What is a chemical element?Ch. 2 - DRAW IT Diagram the electronic configuration of a...Ch. 2 - What type of bond holds the following atoms...Ch. 2 - Classify the following types of chemical...Ch. 2 - Bacteria use the enzyme urease to obtain nitrogen...Ch. 2 - Classify the following as subunits of either a...Ch. 2 - DRAW IT The artificial sweetener aspartame, or...Ch. 2 - DRAW IT The following diagram shows the...Ch. 2 - Prob. 9RCh. 2 - Prob. 10R
Ch. 2 - Assume E. coli bacteria are grown in a nutrient...Ch. 2 - If Pseudomonas bacteria are supplied with...Ch. 2 - If E. coli were grown in a medium containing the...Ch. 2 - Prob. 4MCQCh. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - The dissociation products of the molecules are...Ch. 2 - Prob. 8MCQCh. 2 - The dissociation products of the molecules are...Ch. 2 - Prob. 10MCQCh. 2 - When you blow bubbles into a glass of water, the...Ch. 2 - Prob. 2ACh. 2 - Prob. 3ACh. 2 - Prob. 4ACh. 2 - Prob. 1CAECh. 2 - Prob. 2CAECh. 2 - Newborn babies are tested for phenylketonuria...Ch. 2 - The antibiotic amphotericin B causes leaks in...Ch. 2 - Prob. 5CAE
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