3.4 Electronic Structure of Atoms

(Electron Configurations)

Derive the predicted ground-state electron configurations of atoms

The ground-state electron configuration of an atom is the arrangement of its electrons in the lowest energy level. The electron configuration is determined by the number of electrons in the atom and the energy levels available to them.

Electron Configuration of an Atom - JavaLabOrbital An atom has an atomic nucleus with a (+) charge at the center and electrons with a negative charge around it. Electrons are arranged according to certain rules (wave functions), which… Read more

Structure of an Atom - JavaLabThe discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode… Read more

Relate electron configurations to element classifications in the periodic table

The periodic table is divided into groups and periods based on the electron configurations of the elements.

- Elements in the same group (vertical column) have similar electron configurations and similar chemical properties,
- while elements in the same period (horizontal row) have the same number of energy levels.

Bohr's Atomic Model - JavaLabThe discovery process of the atom Democritus (Ancient Greece) – Predict the presence of an atom Dalton (UK, 1800) – Applied atomic chemistry Krux (Britain, late 19th century) – Invented a cathode… Read more

Electron dot table

3.4 Electronic Structure of Atoms (Electron Configurations) - Chemistry: Atoms First 2e | OpenStax

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