EC, Orbital Diagrams, & Dot Diagrams Review

Front

What is the Aufbau principle?

Back

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

Front

What does an orbital diagram represent?

Back

An orbital diagram visually represents the arrangement of electrons in an atom's orbitals, showing the number of electrons and their spins.

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, meaning that an orbital can hold a maximum of two electrons with opposite spins.

Front

What is Hund's Rule?

Back

Hund's Rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up, to minimize electron-electron repulsion.

Front

What is the noble gas configuration for an element?

Back

The noble gas configuration is a shorthand notation that uses the electron configuration of the nearest noble gas to simplify the representation of an element's electron arrangement.

Front

Identify the noble gas configuration for sulfur.

Back

[Ne] 3s² 3p⁴.

Front

What is the electron configuration for tungsten (W)?

Back

[Xe] 6s² 4f¹⁴ 5d⁴.

Front

How many electrons can the 2p orbital hold?

Back

The 2p orbital can hold a maximum of 6 electrons.

Front

What is the significance of the 4f subshell in electron configurations?

Back

The 4f subshell is significant because it contains the lanthanide series elements, which are important in various applications, including electronics and materials science.

Front

What is the maximum number of electrons in the n=3 energy level?

Back

The maximum number of electrons in the n=3 energy level is 18.