Practice 3.5 Lewis Dot Structures

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

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What does the octet rule state?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

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What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined by the group number of the element in the periodic table.

Front

What is a lone pair in a Lewis Dot Structure?

Back

A lone pair is a pair of non-bonding electrons that are not shared with another atom.

Front

What is the significance of double bonds in Lewis Dot Structures?

Back

Double bonds indicate that two pairs of electrons are shared between two atoms, which can affect the molecule's shape and reactivity.

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How do you represent a covalent bond in a Lewis Dot Structure?

Back

A covalent bond is represented by a line (or lines) between two atoms, indicating shared pairs of electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What is the molecular geometry of a molecule?

Back

Molecular geometry refers to the three-dimensional arrangement of atoms in a molecule, which can be predicted using VSEPR theory.

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs.