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 [Kr] represent in electron configuration?

Back

[Kr] represents the electron configuration of the noble gas Krypton, which is used as a shorthand to simplify the representation of electron configurations for elements beyond Krypton.

Front

How many valence electrons does Magnesium have?

Back

Magnesium has 2 valence electrons, as indicated by its electron configuration ending in 3s².

Front

What is the electron configuration for a noble gas?

Back

The electron configuration for a noble gas is characterized by a full outer shell of electrons, such as 1s² 2s² 2p⁶ for Neon.

Front

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

Back

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

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons are important in chemical bonding as they are the electrons involved in forming bonds with other atoms.

Front

What is the electron configuration for Silver?

Back

The electron configuration for Silver is [Kr] 5s² 4d⁹.

Front

Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p²?

Back

The element with this electron configuration is Silicon.

Front

What is the principle behind 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 the electron configuration for an element with 4 valence electrons?

Back

The electron configuration for an element with 4 valence electrons is 1s² 2s² 2p².