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.

Front

How many valence electrons does fluorine (F) have?

Back

Fluorine has 7 valence electrons.

Front

What is the correct Lewis dot structure for the molecule fluorine (F2)?

Back

The Lewis dot structure for F2 shows two fluorine atoms, each with 7 valence electrons, sharing one pair of electrons.

Front

What is the Lewis structure for water (H2O)?

Back

The Lewis structure for water shows one oxygen atom bonded to two hydrogen atoms, with two lone pairs of electrons on the oxygen.

Front

Which atom will never be in the middle of a Lewis Dot structure?

Back

Hydrogen (H) will never be in the middle of a Lewis Dot structure.

Front

What does a single bond represent in terms of electron pairs?

Back

A single bond represents one pair of shared electrons between two atoms.

Front

What does a double bond represent in terms of electron pairs?

Back

A double bond represents two pairs of shared electrons between two atoms.

Front

What does a triple bond represent in terms of electron pairs?

Back

A triple bond represents three pairs of shared electrons between two atoms.

Front

What is the significance of lone pairs in Lewis Dot Structures?

Back

Lone pairs represent non-bonding electrons that can affect the shape and reactivity of the molecule.

Front

How do you determine the central atom in a Lewis Dot Structure?

Back

The central atom is usually the least electronegative atom or the atom that can form the most bonds.