HN Midterm Review #4

Front

What is Hund's Rule?

Back

Hund's Rule states that electrons will occupy degenerate orbitals singly before pairing up in the same orbital. This minimizes electron-electron repulsion and stabilizes the atom.

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. This means that an orbital can hold a maximum of two electrons with opposite spins.

Front

What is the electron configuration for Zinc (Zn)?

Back

The electron configuration for Zinc is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

How many sub orbitals are in the 2p principal energy level?

Back

There are 3 sub orbitals in the 2p principal energy level.

Front

How many sublevels are in energy level 3?

Back

Energy level 3 is divided into 3 sublevels: 3s, 3p, and 3d.

Front

What is an orbital diagram?

Back

An orbital diagram is a visual representation of the arrangement of electrons in an atom's orbitals, showing the distribution of electrons among the various orbitals.

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 significance of the Aufbau Principle?

Back

The Aufbau Principle states that electrons fill orbitals starting from the lowest energy level to the highest energy level.

Front

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

Back

A principal energy level is a major energy level in an atom, while a sublevel is a subdivision of a principal energy level that contains orbitals.

Front

What is the shape of the p orbital?

Back

The p orbital has a dumbbell shape and consists of three orientations: px, py, and pz.