Electron Configuration

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does Magnesium (Mg) have?

Back

Magnesium has 2 valence electrons.

Front

What is the electron configuration of Krypton (Kr)?

Back

The electron configuration of Krypton is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶.

Front

What is the significance of the electron configuration in determining an element's chemical properties?

Back

The electron configuration determines how an element interacts with other elements, influencing its reactivity, bonding behavior, and overall chemical properties.

Front

Identify the electron configuration for Aluminum (Al).

Back

The electron configuration for Aluminum is 1s² 2s² 2p⁶ 3s² 3p¹.

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹?

Back

Copper (Cu) has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹.

Front

What is the maximum number of electrons that can occupy the s subshell?

Back

The maximum number of electrons that can occupy the s subshell is 2.

Front

What is the maximum number of electrons that can occupy the p subshell?

Back

The maximum number of electrons that can occupy the p subshell is 6.

Front

What is the Aufbau principle in electron configuration?

Back

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

Front

What is Hund's rule?

Back

Hund's rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.