Electron Dot Diagrams

Front

What is an Electron Dot Diagram?

Back

An Electron Dot Diagram is a visual representation of the valence electrons of an atom, using dots around the element's symbol.

Front

How do positive ions form?

Back

Positive ions form by losing electrons.

Front

What is the goal of most elements when gaining or losing electrons?

Back

Most elements aim to have 8 valence electrons.

Front

What does a correct dot diagram for nitrogen (N) look like?

Back

A correct dot diagram for nitrogen shows 5 dots around the symbol N, representing its 5 valence electrons.

Front

Which element has 8 valence electrons?

Back

Noble gases, such as Neon (Ne), have 8 valence electrons.

Front

What is the atomic number of an element with a dot diagram showing 5 valence electrons?

Back

The atomic number of an element with 5 valence electrons is 7 (Nitrogen).

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms, influencing the formation of molecules.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full set of 8 valence electrons.

Front

How many valence electrons does oxygen (O) have?

Back

Oxygen has 6 valence electrons.

Front

What is the electron configuration of a sodium (Na) atom?

Back

The electron configuration of sodium is 1s² 2s² 2p⁶ 3s¹.