Valence Electrons and Lewis Dot Structure

Front

What is the ideal number of valence electrons most elements aim for?

Back

8

Front

How many valence electrons does Bromine (Br) have?

Back

7

Front

What charge does a sodium atom acquire when it loses an electron?

Back

It becomes positively charged.

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 in the molecule.

Front

What do valence electrons determine in an atom?

Back

They determine how an atom can bond with other atoms.

Front

Which group of elements has a full valence shell and is generally unreactive?

Back

Noble gases.

Front

What is the significance of the octet rule in chemistry?

Back

Atoms tend to gain, lose, or share electrons to achieve a full set of eight valence electrons.

Front

How many valence electrons does Silicon (Si) have?

Back

4

Front

What is the Lewis Dot Structure for Oxygen (O)?

Back

O with 6 dots around it representing its 6 valence electrons.

Front

What happens to an atom when it gains an electron?

Back

It becomes negatively charged.