Lewis structures

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight electrons in their valence shell, achieving a stable electron configuration.

Front

How many electrons does hydrogen need to be stable?

Back

Hydrogen needs 2 electrons in its outer energy level to be stable.

Front

What is a single bond in terms of electron sharing?

Back

A single bond involves the sharing of one pair of electrons between two atoms.

Front

What is a double bond in terms of electron sharing?

Back

A double bond involves the sharing of two pairs of electrons between two atoms.

Front

What is a triple bond in terms of electron sharing?

Back

A triple bond involves the sharing of three pairs of electrons between two atoms.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that represents the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

How many electrons are shared in each bonding line in a Lewis structure?

Back

Each bonding line in a Lewis structure represents the sharing of 2 electrons.

Front

What is the correct Lewis structure for NH3?

Back

The correct Lewis structure for NH3 shows nitrogen in the center with three hydrogen atoms bonded to it and one lone pair of electrons on nitrogen.

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs are pairs of valence electrons that are not shared with another atom and can affect the shape and reactivity of the molecule.

Front

What does a dot diagram represent?

Back

A dot diagram represents the valence electrons of an atom, showing how they are arranged around the nucleus.