Electron configuration and Orbital Notation

Front

What is electron configuration?

Back

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

Front

What does the notation 1s² 2s² 2p⁶ represent?

Back

It represents the electron configuration of an atom, showing the number of electrons in each subshell.

Front

How many electrons can the p sublevel hold?

Back

The p sublevel can hold a maximum of 6 electrons.

Front

What is the maximum number of electrons that can occupy the d sublevel?

Back

The d sublevel can hold a maximum of 10 electrons.

Front

What is noble-gas notation?

Back

A shorthand method of writing electron configurations using the nearest noble gas to represent core electrons.

Front

What is the electron configuration for chlorine using noble-gas notation?

Back

[Ne] 3s² 3p⁵.

Front

What is the Pauli Exclusion Principle?

Back

No two electrons in an atom can have the same set of four quantum numbers; thus, an orbital can hold a maximum of two electrons with opposite spins.

Front

What is Hund's Rule?

Back

Electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.

Front

What is the significance of the Aufbau Principle?

Back

Electrons occupy the lowest energy orbitals first before moving to higher energy levels.

Front

How many total electrons are represented in the configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰?

Back

The total number of electrons is 30.