Test - Electron Configuration (2024-2025)

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, indicating the energy levels and sublevels occupied by electrons.

Front

What is the electron configuration of a neutral Calcium (Ca) atom?

Back

1s2 2s2 2p6 3s2 3p6 4s2

Front

What is the electron configuration of Ca⁺²?

Back

1s2 2s2 2p6 3s2 3p6

Front

What is the noble gas configuration for Neon?

Back

[He] 2s2 2p6

Front

How many energy sublevels are in the second principal energy level?

Back

2

Front

What is the shorthand electron configuration for a Sulfur atom?

Back

[Ne] 3s2 3p4

Front

What does the Aufbau Principle state?

Back

Electrons occupy the lowest energy orbitals first before filling higher energy orbitals.

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 maximum number of electrons in the first energy level?

Back

2