Electron Configuration & Groups on the Periodic table

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 for carbon?

Back

1s² 2s² 2p²

Front

What does the term 'orbital' refer to in chemistry?

Back

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

Front

What is the electron configuration for magnesium?

Back

1s² 2s² 2p⁶ 3s²

Front

What is Hund's rule?

Back

Hund's rule states that single electrons with the same spin must occupy each energy orbital before additional electrons with opposite spins can occupy the same orbitals.

Front

What is the significance of the periodic table groups?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

Front

What is the electron configuration for neon?

Back

1s² 2s² 2p⁶

Front

What is the maximum number of electrons that can occupy a single atomic orbital?

Back

A maximum of two electrons can occupy a single atomic orbital, but only if they have opposite spins.

Front

What is the electron configuration for sodium?

Back

1s² 2s² 2p⁶ 3s¹

Front

What does the term 'valence electrons' mean?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.