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 is the Aufbau Principle?

Back

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

Front

What is the Pauli Exclusion Principle?

Back

A principle stating that no two electrons in an atom can have the same set of four quantum numbers, meaning an orbital can hold a maximum of two electrons with opposite spins.

Front

What is Hund's Rule?

Back

The rule stating that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.

Front

What is an orbital?

Back

A region in an atom where there is a high probability of finding an electron.

Front

How many orbitals are in the p sublevel?

Back

There are three orbitals in the p sublevel.

Front

What is the maximum number of electrons in the d sublevel?

Back

The maximum number of electrons in the d sublevel is 10.

Front

What does the notation 1s² represent?

Back

It represents an orbital that can hold a maximum of 2 electrons in the 1s orbital.

Front

What is the electron configuration for Oxygen (O)?

Back

1s² 2s² 2p⁴.

Front

What is the significance of the principal quantum number?

Back

It indicates the main energy level of an electron in an atom.