Electron Configuration

Front

What is electron configuration?

Back

The distribution of electrons in an atom's orbitals, represented by a series of numbers and letters indicating the energy levels and types of orbitals occupied by electrons.

Front

What does the notation 1s² represent?

Back

It indicates that there are 2 electrons in the 1s orbital, which is the lowest energy level.

Front

How many total electrons can the s subshell hold?

Back

The s subshell can hold a maximum of 2 electrons.

Front

What is the maximum number of electrons in the p subshell?

Back

The p subshell can hold a maximum of 6 electrons.

Front

What is the electronic configuration of Neon (Ne)?

Back

1s² 2s² 2p⁶.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are important for determining how an element reacts chemically.

Front

How many valence electrons does Sodium (Na) have?

Back

Sodium has 1 valence electron.

Front

What is the electronic configuration of Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵.

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 Hund's rule?

Back

Hund's rule states that electrons will fill degenerate orbitals singly before pairing up.