Electron Configurations

Front

What is the electron configuration of an oxygen atom?

Back

1s² 2s² 2p⁴

Front

What is the highest occupied energy level in an oxygen atom?

Back

3

Front

What are cations?

Back

Cations are positively charged ions that form when metals lose electrons.

Front

How many total electrons are in an atom with the electron configuration 1s² 2s² 2p⁶?

Back

10

Front

How many valence electrons does an oxygen atom have?

Back

6

Front

What is the electron configuration for a sodium atom?

Back

1s² 2s² 2p⁶ 3s¹

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and reactivity.

Front

What is the electron configuration for a chlorine atom?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

Front

What happens to the electron configuration when an atom becomes a cation?

Back

The atom loses one or more electrons, resulting in a positive charge.

Front

What is the maximum number of electrons that can occupy the third energy level?

Back

18