Final Review #5: Electron Configuration

Front

What is electron configuration?

Back

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

Front

What does the notation 1s² represent?

Back

The notation 1s² indicates that there are 2 electrons in the 1s orbital, which is the lowest energy level.

Front

How many total electrons are in a neutral atom of Silicon (Si)?

Back

A neutral atom of Silicon (Si) has 14 electrons.

Front

What is the electron configuration for Zinc (Zn)?

Back

The electron configuration for Zinc (Zn) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p¹?

Back

The element with this electron configuration is Aluminum (Al).

Front

What is the maximum number of electrons that can occupy the 3rd energy level?

Back

The maximum number of electrons that can occupy the 3rd energy level is 18.

Front

What is the significance of the Aufbau principle in electron configuration?

Back

The Aufbau principle states that electrons occupy the lowest energy orbitals first before filling higher energy levels.

Front

What is the electron configuration for Copper (Cu)?

Back

The electron configuration for Copper (Cu) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹.

Front

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

Back

The number of valence electrons is determined by the electrons in the outermost energy level of an atom.

Front

What is the electron configuration for an atom with 10 electrons?

Back

The electron configuration for an atom with 10 electrons is 1s² 2s² 2p⁶.