AP Chemistry Chapter 8 Vocabulary

Electronic Configuration

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Terms in this set (16)

Electronic Configuration

Particular distribution of electrons among available subshells

Orbital Diagram

Diagram to show the orbitals of a subshell are occupied by electrons

Pauli Exclusion Principle

No two electrons in an atom can have the same four quantum numbers

Aufbau Principle (Building-up principle)

Scheme used to reproduce the electronic config. of the ground states of atoms by successively filling subshells with electrons in a specific order (building up order).

Inner-shell config. corresponding to one of the noble gases, and then the valence electrons of that atom

Valence Electron

Electron in an atom outside the noble-gas core.

Lowest-energy arrangement of electrons in a subshell is obtained by putting electrons into separate orbitals of the subshell with the same spin before pairing electrons.

Paramagnetic Substance

Substance that is weakly attracted to by a magnetic field, and this attraction is generally the result of unpaired electrons

Diamagnetic Substance

Substance that is not attracted by a magnetic field or is very slightly repelled by such a field. This property generally means that the substance has only paired electrons.

When elements are arranged by atomic number, their physical and chemical properties vary periodically.