Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Question
Chapter 15, Problem 15RQ
To determine
The differences between atomic number and mass number of an atom.
Expert Solution & Answer
Answer to Problem 15RQ
Atomic number is defined as the number of protons present in the nucleus of an atom while the mass number is the addition of a number of protons and neutrons in the nucleus of an atom.
Explanation of Solution
The table below shows the difference between the mass number and atomic number.
| Mass number | Atomic number |
|---|---|
| Mass number is the total number of protons and neutrons are present in the nucleus of an atom. | It is the number of protons present in the nucleus of an atom. |
| It is defined as the average weight of an element. | It decides the total number of nucleons in atoms nucleus. |
| Classification and identification of element cannot be decided by mass number. | Atomic number is used in arranging the elements in the modern periodic table and hence used in identification and classification of elements. |
| It is mostly measured in term of an atomic unit, that is amu. | It is just a numeral value of the protons in the nucleus. |
Conclusion:
Therefore, atomic number is defined as the number of protons present in the nucleus of an atom while the mass number is the addition of a number of protons and neutrons in the nucleus of an atom.
Chapter 15 Solutions
Conceptual Physical Science Explorations
Ch. 15 - Prob. 1RQCh. 15 - What was the source of motion in the particles...Ch. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQCh. 15 - Prob. 6RQCh. 15 - Prob. 7RQCh. 15 - Prob. 8RQCh. 15 - Prob. 9RQCh. 15 - Prob. 10RQ
Ch. 15 - Prob. 11RQCh. 15 - Prob. 12RQCh. 15 - Distinguish between a proton and a neutron in...Ch. 15 - Prob. 14RQCh. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Prob. 18RQCh. 15 - Prob. 19RQCh. 15 - Prob. 20RQCh. 15 - Consider three 1-gram samples of matter: A,...Ch. 15 - Prob. 2TCCh. 15 - Prob. 3TCCh. 15 - Prob. 4TCCh. 15 - A cat strolls your backyard. An hour later, a dog...Ch. 15 - Prob. 2TECh. 15 - Prob. 3TECh. 15 - Where did the carbon atoms Leslie's hair...Ch. 15 - Does it make sense to say that this text book is...Ch. 15 - Prob. 6TECh. 15 - Prob. 7TECh. 15 - Prob. 8TECh. 15 - Prob. 9TECh. 15 - Prob. 10TECh. 15 - Prob. 11TECh. 15 - Prob. 12TECh. 15 - Prob. 13TECh. 15 - Prob. 14TECh. 15 - Prob. 15TECh. 15 - Prob. 16TECh. 15 - Prob. 17TECh. 15 - Why dont equal masses of golf balls and Ping-Pong...Ch. 15 - Prob. 19TECh. 15 - Which contains more atoms: 1kg of lead, or 1kg of...Ch. 15 - Prob. 1RATCh. 15 - Prob. 2RATCh. 15 - Someone argues that he or she doesnt drink tap...Ch. 15 - Prob. 4RATCh. 15 - Prob. 5RATCh. 15 - Prob. 6RATCh. 15 - Prob. 7RATCh. 15 - Prob. 8RATCh. 15 - Prob. 9RATCh. 15 - Prob. 10RAT
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