Electron Configuration & Lewis Dot Structures

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating how electrons are arranged around the nucleus.

Front

What are valence electrons?

Back

Electrons that are farthest away from the nucleus and are involved in chemical bonding.

Front

How do you determine the number of valence electrons in an element?

Back

By looking at the group number in the periodic table; elements in the same group have the same number of valence electrons.

Front

What is the significance of noble gases in electron configuration?

Back

Noble gases have full valence shells, making them stable; they are often used as reference points in shorthand electron configurations.

Front

What is the shorthand electron configuration for Argon (Ar)?

Back

[Ne] 3s² 3p⁶.

Front

How many valence electrons does Oxygen (O) have?

Back

6 valence electrons.

Front

What is the 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 draw a Lewis Dot Structure for an element?

Back

Place dots around the element's symbol to represent valence electrons, starting from the top and moving clockwise.

Front

What is the Lewis Dot Structure for Sodium (Na)?

Back

A single dot next to the 'Na' symbol, representing its one valence electron.

Front

What is the electron configuration for Lithium (Li)?

Back

1s² 2s¹.