Chapter 5 Review

Front

What is Hund's Rule?

Back

Hund's Rule states that all orbitals of equal energy are occupied by one electron before any single orbital is occupied by a second electron.

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 paired in an orbital.

Front

What is the significance of the Pauli Exclusion Principle in electron configuration?

Back

The Pauli Exclusion Principle ensures that electrons are paired with opposite spins in the same orbital, preventing overcrowding in orbitals.

Front

How do you calculate the energy of a photon?

Back

The energy of a photon can be calculated using the formula E = h * f, where E is energy, h is Planck's constant (6.626 x 10^-34 J·s), and f is the frequency of the photon.

Front

What is the formula for calculating the energy of a photon with a frequency of 9.50x10^13 Hz?

Back

E = h * f = (6.626 x 10^-34 J·s) * (9.50 x 10^13 Hz) = 6.29 x 10^-20 J.

Front

What is the electron configuration for Fluorine (atomic number 9)?

Back

The electron configuration for Fluorine is 1s² 2s² 2p⁵.

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 is the difference between Hund's Rule and the Pauli Exclusion Principle?

Back

Hund's Rule focuses on maximizing the number of unpaired electrons in degenerate orbitals, while the Pauli Exclusion Principle states that no two electrons can have the same set of quantum numbers.

Front

What are degenerate orbitals?

Back

Degenerate orbitals are orbitals that have the same energy level, such as the three p orbitals in a given energy level.

Front

What is the significance of electron configuration in chemistry?

Back

Electron configuration determines the chemical properties of an element, including its reactivity, bonding behavior, and placement in the periodic table.