Valence Electrons and Lewis Dot Structures

Front

What is a valence electron?

Back

An electron that is found in the outermost shell of an atom.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the octet rule?

Back

The principle that atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

How many valence electrons does Silicon (Si) have?

Back

4 valence electrons.

Front

Which element has a full valence shell?

Back

Neon (Ne) has a full valence shell.

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.

Front

How do you represent a single bond in a Lewis Dot Structure?

Back

By drawing a line between two atoms.

Front

What is the maximum number of valence electrons an atom can have?

Back

8 valence electrons, according to the octet rule.

Front

Which of the following elements has 2 valence electrons: Be, O, N, F?

Back

Beryllium (Be) has 2 valence electrons.

Front

What does it mean for an atom to be stable in terms of valence electrons?

Back

An atom is stable when it has a full valence shell, typically 8 electrons.