Electron Configuration

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, indicating how electrons are arranged around the nucleus.

Front

What is the Aufbau principle?

Back

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

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.

Front

What is the Pauli Exclusion Principle?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining an element's chemical properties and reactivity.

Front

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

Back

The number of valence electrons can be determined from the element's group number in the periodic table.

Front

What is a noble gas configuration?

Back

A noble gas configuration is a shorthand notation for electron configuration that uses the electron configuration of the nearest noble gas to simplify the representation.

Front

What is the electron configuration for Neon?

Back

The electron configuration for Neon is 1s² 2s² 2p⁶.

Front

What is the correct electron configuration for an element with 7 valence electrons?

Back

The correct electron configuration for an element with 7 valence electrons is 1s² 2s² 2p⁵.

Front

What is the orbital diagram?

Back

An orbital diagram is a visual representation of the electron configuration of an atom, showing the distribution of electrons in orbitals.