atomic spectra

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4 Terms

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bohr’s model

is a planetary model of the atom proposed by Niels Bohr in 1913. It describes electrons orbiting the nucleus in fixed paths and energy levels, explaining atomic structure and spectral lines.

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ground electronic state

when the electron is in the lowest energy orbit

n = 1 orbit closest to the nucleus

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quantum numbers

integer numbers having only specific allowed value and used to characterize the arrangement of electrons in an atom

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excited electronic state

when an atom receives energy and is moved to an orbit with a higher n value