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 noble gas configuration represent?

Back

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

Front

What is the significance of the Aufbau principle in electron configuration?

Back

It states that electrons fill orbitals starting from the lowest energy level to the highest.

Front

Define the Pauli Exclusion Principle.

Back

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

Electrons will occupy degenerate orbitals singly before pairing up, to minimize electron-electron repulsion.

Front

How many electrons can the s, p, d, and f orbitals hold?

Back

s: 2, p: 6, d: 10, f: 14.

Front

What is the electron configuration for aluminum?

Back

[Ne]3s²3p¹.

Front

What is the orbital notation for carbon?

Back

1s² 2s² 2p².

Front

How do you determine the number of electrons in an atom from its electron configuration?

Back

By adding the superscripts in the configuration, which represent the number of electrons in each orbital.

Front

What is the shortcut configuration for iodine?

Back

[Kr]5s²4d¹⁰5p⁵.