Electron Configurations Practice Test 1

Front

What is the Aufbau Principle?

Back

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

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.

Front

How many electrons can the s sublevel hold?

Back

The s sublevel can hold a maximum of 2 electrons.

Front

How many electrons can the p sublevel hold?

Back

The p sublevel can hold a maximum of 6 electrons.

Front

How many orbitals does an f sublevel have?

Back

The f sublevel has 7 orbitals.

Front

What is the maximum number of electrons in a d sublevel?

Back

The d sublevel can hold a maximum of 10 electrons.

Front

What is the electron configuration for Neon?

Back

The electron configuration for Neon is 1s² 2s² 2p⁶.

Front

What is the electron configuration for Magnesium?

Back

The electron configuration for Magnesium is 1s² 2s² 2p⁶ 3s².

Front

What is the significance of the principal quantum number?

Back

The principal quantum number indicates the main energy level of an electron in an atom.

Front

What is an orbital?

Back

An orbital is a region in an atom where there is a high probability of finding electrons.