Lewis Dot Structures, Covalent and Ionic

Front

What is a Lewis Dot Structure?

Back

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

Front

What are valence electrons?

Back

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

Front

How many valence electrons does carbon have?

Back

4 valence electrons.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 electrons.

Front

What type of bond is formed when electrons are shared between atoms?

Back

Covalent bond.

Front

What type of bond is formed when electrons are transferred from one atom to another?

Back

Ionic bond.

Front

How many electrons does hydrogen need to be stable?

Back

2 electrons.

Front

What is the molecular formula for water?

Back

H2O.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed from the transfer of electrons, while covalent compounds are formed from the sharing of electrons.

Front

What is the Lewis structure for oxygen (O2)?

Back

O:O (with 2 pairs of shared electrons).