Lewis structures and covalent bonds

Front

What is a Lewis structure?

Back

A Lewis 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

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

What is a single bond?

Back

A single bond is a covalent bond formed by the sharing of one pair of electrons between two atoms.

Front

What is a double bond?

Back

A double bond is a covalent bond formed by the sharing of two pairs of electrons between two atoms.

Front

What is a triple bond?

Back

A triple bond is a covalent bond formed by the sharing of three pairs of electrons between two atoms.

Front

What are valence electrons?

Back

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

Front

How many valence electrons does Oxygen have?

Back

Oxygen has 6 valence electrons.

Front

How many valence electrons does Nitrogen have?

Back

Nitrogen has 5 valence electrons.

Front

Why is Hydrogen never in the middle of a Lewis Dot structure?

Back

Hydrogen can only form one bond because it has only one electron to share, making it unsuitable for the central position in a Lewis structure.