Front

What does hydrogen need in its valence shell to be stable?

Back

Hydrogen needs 2 electrons in its valence shell to be stable.

Front

According to the octet rule, how many valence electrons do most elements need?

Back

Most elements need 8 valence electrons according to the octet rule.

Front

What is the correct Lewis structure for water?

Back

The correct Lewis structure for water is represented as H2O, with oxygen having two lone pairs and two single bonds to hydrogen.

Front

How many double bonds are present in CCl4?

Back

CCl4 has 0 double bonds.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form compounds in ways that give them eight valence electrons, achieving a stable electron configuration.

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

How many valence electrons does nitrogen need to be stable?

Back

Nitrogen needs 8 valence electrons to be stable, following the octet rule.

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs represent non-bonding electrons that can affect the shape and reactivity of molecules.

Front

What is the Lewis structure for carbon dioxide (CO2)?

Back

The Lewis structure for CO2 shows carbon in the center with two double bonds to oxygen atoms.

Front

What is the difference between single, double, and triple bonds in Lewis structures?

Back

Single bonds share one pair of electrons, double bonds share two pairs, and triple bonds share three pairs of electrons.