Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Which statement is false given the following Lewis structures?
Structure III is a valid structure for PF4 because P can expand its octet.
Structure I is a valid structure for BBr3 because B (n=2) needs an octet of electrons.
Structure II is a valid structure for SeH2 because H needs a duet of electrons.
Structure IV is a valid structure for AsO43- because As can expand its octet.
Transcribed Image Text:The image consists of Lewis structures for four different chemical species. Each structure shows the arrangement of valence electrons around the central atoms and any associated bonding.
I. **Bromine Trifluoride (BrF₃)**: A trigonal planar structure where a boron (B) atom is centrally located and bonded to three bromine (Br) atoms. Each bromine atom is depicted with lone pairs of electrons, represented by dots.
II. **Hydrogen Selenide (H₂Se)**: A linear structure with a selenium (Se) atom centrally bonded to two hydrogen (H) atoms. Selenium is shown with two lone pairs of electrons.
III. **Phosphorus Pentafluoride (PF₅)**: A trigonal bipyramidal structure with a phosphorus (P) atom centrally bonded to five fluorine (F) atoms. Each fluorine atom is shown with three lone pairs of electrons.
IV. **Arsenate Ion (AsO₄³⁻)**: A tetrahedral structure showing an arsenic (As) atom centrally bonded to four oxygen (O) atoms. Three oxygen atoms are singly bonded to arsenic with a charge of -1 for the ion, each having three lone pairs. The fourth oxygen is double bonded with two lone pairs, depicted within brackets indicating the overall -3 charge of the ion.
These diagrams provide visual guidance on how electrons are distributed in these molecules and ions, which is crucial for understanding their chemical behavior and bonding characteristics.
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