Which statement explains how the octet rule influences the way covalent bonds are modeled?
The octet rule states atoms are least stable with a full valence shell. Covalently bonded atoms following this rule are each shown with eight valence electrons. Electrons that are shared between atoms are shown as bonds, while unshared electrons are shown as lone pairs.
The octet rule states atoms are most stable with a full valence shell. Covalently bonded atoms following this rule are each shown with eight valence electrons. Electrons that are shared between atoms are shown as bonds, while unshared electrons are shown as lone pairs.
The octet rule states atoms are most stable with a full valence shell. Covalently bonded atoms following this rule are each shown with eight valence electrons. Electrons that are shared between atoms are shown as lone pairs, while unshared electrons are shown as bonds.
The octet rule states atoms are least stable with a full valence shell. Covalently bonded atoms following this rule are each shown with eight valence electrons. Electrons that are shared between atoms are shown as lone pairs, while unshared electrons are shown as bonds.
B?
correct, B. You ought to know why the others are flawed.
The correct statement that explains how the octet rule influences the way covalent bonds are modeled is:
"The octet rule states atoms are most stable with a full valence shell. Covalently bonded atoms following this rule are each shown with eight valence electrons. Electrons that are shared between atoms are shown as bonds, while unshared electrons are shown as lone pairs."
To understand why this statement is correct, here's an explanation:
The octet rule is a basic principle in chemistry that states atoms tend to gain, lose, or share electrons in order to achieve a stable electron configuration with a full valence shell, which typically consists of eight electrons. Covalent bonding is a type of chemical bonding in which atoms share electrons to attain that full valence shell.
In covalent bond representations, atoms are usually shown with their valence electrons as dots or lines, indicating the sharing of electrons. Following the octet rule, each atom participating in the covalent bond should have eight electrons in its valence shell when possible. Therefore, in the electron dot structure or Lewis structure, each atom is typically shown with eight valence electrons.
Shared electrons between the atoms involved in the bond are represented by lines or bonds connecting the atoms. These bonds represent the sharing of a pair of electrons between atoms to fulfill the octet rule and achieve stability.
On the other hand, unshared electrons (also called lone pairs) are represented by pairs of dots or nonbonding pairs of electrons on individual atoms. These lone pairs are electrons that are not involved in bonding but still contribute to the stability of the atom by completing the octet rule.
Therefore, the correct statement is that covalently bonded atoms following the octet rule are each shown with eight valence electrons, with shared electrons shown as bonds and unshared electrons shown as lone pairs.