Electron Configuration & Orbital Notation Review

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 Pauli Exclusion Principle state?

Back

The Pauli Exclusion Principle states that no two electrons in an atom can have the same set of four quantum numbers, meaning they must have opposite spins when in the same orbital.

Front

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

Back

A single orbital can hold a maximum of 2 electrons, which must have opposite spins.

Front

What is the electron configuration for Neon (Ne)?

Back

1s² 2s² 2p⁶.

Front

How many electrons does an atom of Silicon (Si) have?

Back

Silicon (Si) has 14 electrons.

Front

What is the significance of the Aufbau Principle?

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 Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵.

Front

What is the difference between an energy level and a sublevel?

Back

An energy level is a major shell (n=1, 2, 3, etc.) where electrons reside, while a sublevel (s, p, d, f) describes the shape and type of orbital within that energy level.

Front

What is the electron configuration for Zinc (Zn)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

What does the term 'orbital notation' refer to?

Back

Orbital notation is a way of representing the arrangement of electrons in an atom using arrows to indicate the spin of electrons in orbitals.