Electron Configuration and Orbital Notation

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 is the maximum number of electrons that can occupy the first energy level?

Back

The first energy level can hold a maximum of 2 electrons.

Front

What is the electron configuration for an oxygen atom?

Back

1s² 2s² 2p⁴.

Front

What is noble-gas notation?

Back

Noble-gas notation is a shorthand way of writing electron configurations using the electron configuration of the nearest noble gas to simplify the representation.

Front

What is the noble-gas notation for chlorine?

Back

[Ne] 3s² 3p⁵.

Front

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

Back

10 electrons.

Front

What is the electron configuration for calcium?

Back

[Ne] 3s² 3p⁶ 4s².

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 Hund's Rule?

Back

Hund's Rule states that electrons will occupy degenerate orbitals singly before pairing up.

Front

What is the shape of the s orbital?

Back

The s orbital has a spherical shape.