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 18RQ
To determine
The number of shells needed to explain the periodic table.
Expert Solution & Answer
Answer to Problem 18RQ
The eight electrons in their outermost shell are needed for the atom to be stable according to octet rule.
Explanation of Solution
The electrons in the outermost shell decide the chemical properties of the atom. Each shell contains one or more sub-shells, and each sub-shell consists of one or more atomic orbital.
The number of shells in the atom is decided by the number of electrons present in the atom. The more number of electrons in an atom, more will be the number of shells filled by the electron in the atoms.
For example the carbon atom consists of six electrons and it has two shells that occupy these electrons. And in the magnesium atom, there are 12 electrons and three shells are needed to fulfill the octet rule in the atom, first shell contains two electrons, second shell contains 8 electrons, while third shell contains 2 electrons.
The most stable atoms have their outermost electron shell full. Most of the elements need eight electrons in their outermost shell in order to be stable.
Conclusion:
Therefore, the eight electrons in their outermost shell are needed for the atom to be stable according to octet rule.
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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