Covalent Bonding and Electron Dot Structures

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed when two atoms share one or more pairs of 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 bond angle in a trigonal planar molecule?

Back

The bond angle in a trigonal planar molecule is 120 degrees.

Front

What is the bond angle in a linear molecule?

Back

The bond angle in a linear molecule is 180 degrees.

Front

How many valence electrons does a nitrogen atom have?

Back

A nitrogen atom has 5 valence electrons.

Front

What is the total number of valence electrons in a nitrate ion (NO3-)?

Back

The total number of valence electrons in a nitrate ion (NO3-) is 24.

Front

What molecular geometry does a molecule with four bonding pairs and no lone pairs exhibit?

Back

A molecule with four bonding pairs and no lone pairs exhibits tetrahedral geometry.

Front

What is the bond angle in a tetrahedral molecule?

Back

The bond angle in a tetrahedral molecule is approximately 109.5 degrees.

Front

What is the difference between a single bond and a double bond?

Back

A single bond involves one pair of shared electrons, while a double bond involves two pairs of shared electrons.

Front

What is the molecular geometry of a molecule with three bonding pairs and one lone pair?

Back

The molecular geometry of a molecule with three bonding pairs and one lone pair is trigonal pyramidal.