Electron Configuration Review

Front

What is the electron configuration of Magnesium?

Back

1s² 2s² 2p⁶ 3s²

Front

How many electrons are in an atom with the electron configuration 1s² 2s² 2p⁶?

Back

10

Front

What does the Pauli Exclusion Principle state?

Back

No two electrons in the same orbital can have the same spin.

Front

What is the Aufbau Principle?

Back

Electrons occupy orbitals of lowest energy first.

Front

What is the electron configuration of an oxygen atom?

Back

1s² 2s² 2p⁴

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

2 electrons.

Front

What is Hund's Rule?

Back

Single electrons with the same spin must occupy each energy orbital before additional electrons with opposite spins can occupy the same orbitals.

Front

What is the significance of the principal quantum number?

Back

It indicates the main energy level of an electron.

Front

What is the shape of the s orbital?

Back

Spherical.

Front

What is the shape of the p orbital?

Back

Dumbbell-shaped.