Electron Dot Diagrams

Front

What is an Electron Dot Diagram?

Back

An Electron Dot Diagram, also known as a Lewis Dot Diagram, represents the valence electrons of an atom as dots around the element's symbol.

Front

How many valence electrons does nitrogen (N) have?

Back

Nitrogen has 5 valence electrons.

Front

What is the correct Electron Dot Diagram for nitrogen (N)?

Back

The correct diagram shows 5 dots around the 'N' symbol, representing its 5 valence electrons.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What are the elements in Group 18 / 8A called?

Back

They are called Noble Gases.

Front

How many valence electrons do Noble Gases have?

Back

Noble Gases have 8 valence electrons, except for Helium, which has 2.

Front

What is the Electron Dot Diagram for magnesium (Mg)?

Back

The diagram shows 2 dots around the 'Mg' symbol, representing its 2 valence electrons.

Front

What is the significance of valence electrons in chemical bonding?

Back

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

Front

What is the Electron Dot Diagram for neon (Ne)?

Back

The correct diagram shows 8 dots around the 'Ne' symbol, representing its 8 valence electrons.

Front

Why is the Electron Dot Diagram for neon (Ne) considered incorrect if it shows fewer than 8 dots?

Back

Because neon is a Noble Gas and should have a complete outer shell with 8 valence electrons.