2.1.3 Octet Rule

Recap of The Octet Rule

Recap of The Octet Rule. Atoms tend to gain, lose, or share electrons until they have eight valence electrons. Hydrogen is an exception. It shares only one electron to reach an outer shell of two electrons.

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Writing Lewis Formulas: The Octet Rule

Writing Lewis Formulas: The Octet Rule. The octet rule states that representative elements usually attain stable noble gas electron configurations in most of their compounds. Lewis dot formulas are based on the octet rule.

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Valence Electrons, The Octet Rule, Ions

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The Octet Rule in Covalent Bonding

8.2. The Octet Rule in Covalent Bonding. The Octet Rule in Covalent Bonding What is the result of electron sharing in covalent bonds?. 8.2. The Octet Rule in Covalent Bonding. In covalent bonds, electron sharing usually occurs so that atoms attain the electron configurations of noble gases.

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8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule

8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule. Chemical bond - attractive force between atoms or ions Ionic bond - electrostatic force between oppositely-charges ions; results from the transfer of electrons from a metal to a nonmetal.

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Exceptions to the Octet Rule

Exceptions to the Octet Rule. Exceptions to the Octet Rule. Elements 1-5 (will only attempt to get 2 valence electrons, not 8) Odd number of valence electrons. Ex. ClO 2 Expanded octet (more than octet) Ex. XeF 6. Exceptions to the Octet Rule.

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Exceptions to the Octet Rule

Exceptions to the Octet Rule. 1. Electron-odd Species:. Covalent compounds that have an odd number of total valence electrons Results in an unpaired electron in the Lewis structure i.e.: NO 2. 1. Electron-odd Species:. In this case, we refer to these compounds as paramagnetic

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Exceptions to the octet rule

Exceptions to the octet rule. Learning Goal: To learn about the lies we’ve been telling you. Exceptions to the octet. Some have too few electrons to form an octet: H, Be, and B (n=1 only needs 2 electrons to complete the energy level) (B is just special). Some have too many….

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The Octet Rule

The Octet Rule. Noble Gases: the happiest elements. Happy atoms have a full outer energy level of electrons. They rarely combine with other elements. Nonreactivity is why they are called noble or inert. Octet Rule. An octet is 8 valence electrons

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The Octet Rule

The Octet Rule. Noble gases are unlike any other group of elements on the periodic table because of their extreme stability. Each noble gas has eight valence electrons , except for helium, which has two.

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Lecture 1.2 – the Octet Rule

Lecture 1.2 – the Octet Rule. CA Standards. Students can determine the number of valence electrons for an element, draw a Lewis dot notation for an element and explain how the Octet rule leads to the formation of ions. I. VALENCE SHORTCUT!.

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Exception to the octet rule

Exception to the octet rule. 1s. 2s. 2p. F = 8 electrons B = 6 electrons (incomplete octet). ( i ) Incomplete octets

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When does the octet rule fail?

When does the octet rule fail?. H, He and Li. Helium strives for 2 valence electrons 1s 2 configuration Hydrogen will sometimes will share its one electron with another atom, forming a single covalent bond Lithium will lose its lone valence electron, gaining the 1s 2 configuration of He.

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Exceptions to the Octet Rule

Exceptions to the Octet Rule. There are three types of ions or molecules that do not follow the octet rule: Ions or molecules with an odd number of electrons. Ions or molecules with less than an octet. Ions or molecules with more than eight valence electrons (an expanded octet).

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8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule.

8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule. By: Chris Wemmer and Maggie Kastenhuber. Chemical Bonds. A chemical bond is formed “whenever atoms or ions are strongly attached to one another”. Work Cited: Brown and Lemay Chemistry the central science

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The Octet Rule

The Octet Rule. Noble gases are unlike any other group of elements on the periodic table because of their extreme stability. Each noble gas has eight valence electrons, except for helium, which has two.

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Exceptions to the Octet Rule

Exceptions to the Octet Rule. Boron tends to form compounds in which the boron atom has fewer than eight electrons around it (it does not have a complete octet). BH 3 = 6e –.

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The Octet Rule

The Octet Rule. All atoms “want” a full valence shell of e- This makes them more stable, like the Noble Gases, which have 8e-, a full valence shell. For H and He a full valence shell is 2 e- For all bigger atoms, a full valence shell is 8 e- (hence “octet”).

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The Octet Rule in Covalent Bonding

8.2. The Octet Rule in Covalent Bonding. The Octet Rule in Covalent Bonding What is the result of electron sharing in covalent bonds?. 8.2. The Octet Rule in Covalent Bonding. In covalent bonds, electron sharing usually occurs so that atoms attain the electron configurations of noble gases.

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The Octet Rule

The Octet Rule. Noble gases are unlike any other group of elements on the periodic table because of their extreme stability. Each noble gas has eight valence electrons, except for helium, which has two.

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