What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
3rd Edition
ISBN: 9781319028503
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 2, Problem 1SA
Summary Introduction
To review:
Why the weight of electrons is ignored when we consider atomic mass.
Introduction:
Atoms are made up of three particles – protons, neutrons and electrons.
Expert Solution & Answer
Explanation of Solution
Atoms are made of the positively charged protons, neutral neutrons and negatively charged electrons. The protons and neutrons have similar weight and sit at the core of the atom (the nucleus). However, the weight of an electron is less than one-twentieth of 1% of the weight of a proton. The weight of the electrons is insignificant in comparison with that of the protons and neutrons. This is why the weight of the electrons is ignored.
Conclusion
Electrons weigh less than one-twentieth of 1% of the weight of the protons. The weight of the electrons is insignificant in comparison with that of the protons and neutrons. This is why the weight of the electrons is ignored.
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Chapter 2 Solutions
What is Life? A Guide to Biology 3e & LaunchPad for Phelan's What is Life? (Six Month Access) 3e
Ch. 2 - Prob. 1SACh. 2 - Prob. 2SACh. 2 - Prob. 3SACh. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - Prob. 6SACh. 2 - Prob. 7SACh. 2 - Prob. 8SACh. 2 - Prob. 9SACh. 2 - Prob. 10SA
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