Electron Configuration Review/Practice

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, which determines its chemical properties.

Front

What is the maximum number of electrons that can occupy the first energy level?

Back

2 electrons.

Front

What is the Aufbau Principle?

Back

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

Front

What is the Pauli Exclusion Principle?

Back

No two electrons in an atom can have the same set of four quantum numbers.

Front

What is Hund's Rule?

Back

Electrons will fill degenerate orbitals singly before pairing up.

Front

What is the shorthand electron configuration for Neon?

Back

[He] 2s² 2p⁶.

Front

Identify the element in Period 5 that has 1 valence electron.

Back

Rubidium (Rb).

Front

How many valence electrons does Sulfur have?

Back

6 valence electrons.

Front

What is the electron configuration for a Sodium atom?

Back

1s² 2s² 2p⁶ 3s¹.

Front

What is the significance of valence electrons?

Back

They determine an atom's ability to bond with other atoms.