Practice 3.5 Lewis Dot Structures

Front

What is a triple bond?

Back

A triple bond is a type of chemical bond where three pairs of electrons are shared between two atoms.

Front

What is the correct Lewis structure for water (H2O)?

Back

The correct Lewis structure for water shows the oxygen atom in the center with two lone pairs of electrons and two hydrogen atoms bonded to it.

Front

What is a lone pair?

Back

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

Front

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

Back

The correct Lewis dot structure for fluorine (F2) shows two fluorine atoms each with three lone pairs and one bond between them.

Front

How many valence electrons does Carbon have?

Back

Carbon has 4 valence electrons.

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.

Front

What is the significance of valence electrons in bonding?

Back

Valence electrons are the electrons in the outermost shell of an atom and are involved in forming bonds with other atoms.

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 single bond?

Back

A single bond is a type of chemical bond where one pair of electrons is shared between two atoms.

Front

What is a double bond?

Back

A double bond is a type of chemical bond where two pairs of electrons are shared between two atoms.