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 valence electrons, achieving a stable electron configuration similar to that of noble gases.

Front

How many valence electrons do most elements need according to the octet rule?

Back

8

Front

How many valence electrons does phosphorus have?

Back

5

Front

What is the significance of valence electrons in bonding?

Back

Valence electrons are the electrons in the outermost shell of an atom and are involved in forming bonds with other atoms.

Front

How many total valence electrons are participating in bonding in a stable molecule?

Back

The total number of valence electrons participating in bonding can vary, but in many stable molecules, it is often 8.

Front

What is the exception to the octet rule for hydrogen?

Back

Hydrogen is an exception to the octet rule as it only needs 2 electrons in its outer energy level to be stable.

Front

What type of bond involves the sharing of three pairs of electrons?

Back

Triple bond.

Front

What is a single bond?

Back

A single bond is a chemical bond between two atoms involving the sharing of one pair of electrons.

Front

What is a double bond?

Back

A double bond is a chemical bond between two atoms involving the sharing of two pairs of electrons.

Front

What is the role of Lewis structures in chemistry?

Back

Lewis structures are diagrams that represent the valence electrons of atoms within a molecule, showing how they are arranged and bonded.