Refer to Table 6.3 and answer these questions: (a) Do any...

Name: Problem 5, Chapter 6: Chemistry The Molecular Science
Uploaded: 2021-05-20T15:11:23-08:00
Duration: 2 min 51 s
Channel: Lottie Adams
Description: Refer to Table 6.3 and answer these questions: (a) Do any molecules exist that have more than eight valence electrons around a central atom that is a secondperiod element? (b) What is the maximum number of bond pairs and lone pairs that surround the central atom in any of the molecules in Table 6.3 ?

Refer to Table 6.3 and answer these questions: (a) Do any molecules exist that have more than eight valence electrons around a central atom that is a secondperiod element? (b) What is the maximum number of bond pairs and lone pairs that surround the central atom in any of the molecules in Table 6.3 ?

Refer to Table 6.3 and answer these questions:
(a) Do any molecules exist that have more than eight valence electrons around a central atom that is a secondperiod element?
(b) What is the maximum number of bond pairs and lone pairs that surround the central atom in any of the molecules in Table 6.3 ?

Key Concepts

Octet Rule

The octet rule is a principle in chemistry stating that atoms, particularly those in the second period, tend to form bonds in such a way that they are surrounded by eight electrons in their valence shell. This rule explains why second-period elements are limited to an octet structure, as they lack the d-orbitals necessary to accommodate additional electrons.

Expanded Octet

Expanded octet refers to the ability of atoms from the third period and beyond to have more than eight electrons in their valence shell. This occurs because these elements have access to d-orbitals, which allow them to form more bonds or hold extra lone pairs, resulting in molecular structures that exceed the octet predicted by the standard rule.

Valence Shell Electron Pair Repulsion (VSEPR) Theory

VSEPR theory is a model used to predict the arrangement of electron pairs around a central atom in a molecule. According to the theory, both bonding pairs and lone pairs of electrons repel each other and, to minimize these repulsions, adopt spatial arrangements that determine the molecule’s geometry.

Electron Domain Geometry

Electron domain geometry describes the overall three-dimensional arrangement of all electron groups (both bond pairs and lone pairs) surrounding a central atom. By counting the number of electron domains, one can predict the basic shape of a molecule, including the maximum number of electron pairs that can surround the central atom.

Transcript

Please give Ace some feedback