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Ch.9 - Molecular Geometry and Bonding Theories
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 14th EditionCh.9 - Molecular Geometry and Bonding Theories문제 68
9장, 문제 68

What hybridization do you expect for the atom that is underlined in each of the following species? (a) IO2- (b) NH4+ (c) SCN- (d) BrCl3

검증된 단계별 안내
1
Identify the central atom in the species, which is iodine (I) in IO_2^-.
Determine the number of valence electrons for iodine. Iodine has 7 valence electrons.
Consider the charge of the ion. The negative charge (1-) indicates an additional electron, making it 8 valence electrons to distribute.
Count the number of atoms bonded to iodine. There are two oxygen atoms bonded to iodine.
Use the formula for hybridization: Hybridization = (Number of sigma bonds + Number of lone pairs). Calculate the hybridization based on the number of sigma bonds and lone pairs around iodine.

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주요 개념

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Hybridization

Hybridization is a concept in chemistry that describes the mixing of atomic orbitals to form new hybrid orbitals. These hybrid orbitals are used to explain the geometry of molecular bonding. The type of hybridization depends on the number of electron pairs around the central atom, which can include both bonding pairs and lone pairs.
추천 영상:
가이드 코스
00:51
Hybridization

Lewis Structures

Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. They help visualize the arrangement of electrons and can be used to determine the hybridization of atoms. By drawing the Lewis structure for IO2-, one can identify the number of electron domains around the iodine atom, which is crucial for determining its hybridization.
추천 영상:
가이드 코스
04:28
Lewis Dot Structures: Ions

VSEPR Theory

Valence Shell Electron Pair Repulsion (VSEPR) theory is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs. According to VSEPR, electron pairs will arrange themselves to minimize repulsion, which directly influences the hybridization of the central atom. Understanding VSEPR helps in predicting the shape of the IO2- ion and thus its hybridization.
추천 영상:
가이드 코스
02:13
Molecular Shapes and VSEPR
관련 실천
교과서 질문

In the formate ion, HCO2-, the carbon atom is the central atom with the other three atoms attached to it. (d) How many electrons are in the p system of the ion? 

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교과서 질문
(a) If you combine two atomic orbitals on two different atoms to make a new orbital, is this a hybrid orbital or a molecular orbital?
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교과서 질문

(b) If you combine two atomic orbitals on one atom to make a new orbital, is this a hybrid orbital or a molecular orbital?

교과서 질문

Consider the Lewis structure shown below.

(a) Does the Lewis structure depict a neutral molecule or an ion? If it is an ion, what is the charge on the ion? What is the charge on the ion

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교과서 질문

Predict the molecular geometry of each of the following molecules: (b) H O C O C O O H

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