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 carbon (C) have?

Back

Carbon has 4 valence electrons.

Front

What is the molecular geometry of ammonia (NH3)?

Back

The molecular geometry of ammonia (NH3) is trigonal pyramidal.

Front

How many lone pairs are present in the Lewis structure of water (H2O)?

Back

Water (H2O) has 2 lone pairs on the oxygen atom.

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs affect the shape and polarity of molecules and are important for determining molecular geometry.

Front

What is the correct Lewis dot structure for oxygen (O2)?

Back

The Lewis dot structure for O2 shows a double bond between the two oxygen atoms, with each having 2 lone pairs.

Front

How many double bonds are present in the Lewis structure of carbon dioxide (CO2)?

Back

Carbon dioxide (CO2) has 2 double bonds, one between carbon and each oxygen.

Front

What is the molecular shape of carbon tetrachloride (CCl4)?

Back

The molecular shape of carbon tetrachloride (CCl4) is tetrahedral.

Front

What is the maximum number of bonds that carbon can form?

Back

Carbon can form a maximum of 4 bonds.

Front

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

Back

The Lewis dot structure for fluorine (F2) shows a single bond between the two fluorine atoms, with 3 lone pairs on each.