Electron Configuration & Lewis Dot Structures

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What are valence electrons?

Back

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

Front

What is the significance of the noble gas configuration?

Back

It represents a shorthand notation for electron configurations, using the nearest noble gas to simplify the representation of an atom's electron arrangement.

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 electron configuration for Iodine (I)?

Back

[Kr] 5s² 4d¹⁰ 5p⁵.

Front

What is the shorthand electron configuration for Sulfur (S)?

Back

[Ne] 3s² 3p⁴.

Front

What is the electron configuration for Argon (Ar)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶.

Front

What is the electron configuration for Krypton (Kr)?

Back

[Ar] 4s² 3d¹⁰ 4p⁶.

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

How do you draw a Lewis Dot Structure for an element?

Back

By placing dots around the element's symbol to represent its valence electrons.