Electron Configuration

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 are the main energy levels in electron configuration?

Back

The main energy levels are denoted by principal quantum numbers (n), which can be 1, 2, 3, etc.

Front

What are sublevels in electron configuration?

Back

Sublevels are divisions of energy levels, represented as s, p, d, and f, each with a specific number of orbitals.

Front

What is the maximum number of electrons in a principal energy level?

Back

The maximum number of electrons in a principal energy level is given by the formula 2n².

Front

What is the Aufbau principle?

Back

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

Front

What is the Pauli exclusion principle?

Back

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

Front

What is Hund's rule?

Back

Electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up.

Front

What is the electron configuration for Neon (Ne)?

Back

1s² 2s² 2p⁶.

Front

What is the electron configuration for Iron (Fe)?

Back

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶.

Front

What are transition elements?

Back

Elements found in groups 3-12 of the periodic table, characterized by the filling of d orbitals.