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Lesson Flashcards: Modern Atomic Theory Chemistry

Wave–particle duality

The tendency of objects to exhibit wavelike and particle-like properties

Atomic orbitals

Three-dimensional mathematical expressions that describe the electron cloud and the most likely location of an electron in an atom

Electron cloud

The region of space around the nucleus of an atom where there is a probability of finding an electron

Atomic orbitals

Three-dimensional mathematical expressions that describe part of the electron cloud and are the most likely location of an electron in an atom

Quanta

Discrete packets of energy

Heisenberg’s uncertainty principle

The more accurately you determine a particle’s position in space, the more uncertain your measurement of its momentum becomes (and vice versa)

Heisenberg’s uncertainty principle

The more accurately you determine a particle’s position in space, the more uncertain your measurement of its momentum becomes.

Wave–particle duality

A concept whereby objects can exhibit wavelike and particle-like properties

Electron cloud

A region of space around the nucleus of an atom where there is a high probability of finding an electron

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