# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 5 Search : quantum number
 azimuthal quantum number   عدد ِ کو‌آنتومی ِ سوگانی   adad-e kuântomi-ye sugâniFr.: nombre quantique azimutal   In quantum mechanics, a quantum number that distinguishes the different shapes of the orbitals.Azimuthal, adj. from → azimuth; → quantum number. magnetic quantum number   عدد ِ کو‌آنتومی ِ مغناتیسی   adad-e kuântomi-ye meqnâtisi (#)Fr.: nombre quantique magnétique   In atomic physics, a quantum number that denotes the energy levels available within a subshell. Designated by the letter m, it is one of a set of quantum numbers which describe the unique quantum state of an electron.→ magnetic; → quantum; → number. principal quantum number   عدد ِ کو‌آنتومی ِ فرین   adad-e kuântomi-ye farinFr.: nombre quantique principal   In atomic physics, the first of a set of quantum numbers which describe an atomic orbital. Symbolized as n, it characterizes the size and energy of an orbital.→ principal; → quantum; → number. quantum number   عدد ِ کو‌آنتومی   adad-e kuântomi (#)Fr.: nombre quantique   A number used in quantum mechanics, specifying the state of an electron bound in an atomic system. The quantum numbers are integers or half integers and specify the number of units of energy, momentum, spin, etc. possessed by an electron.→ quantum; → number. spin quantum number   عدد ِ کو‌آنتومی ِ اسپین   adad-e kuântomi-ye espinFr.: nombre quantique de spin   An integer or half-integer on which the magnitude of a particle's → spin angular momentum depends. It is expressed in units of → Planck's constant divided by 2π. Called also spin, denoted s. The spin of a particle can only have a value that is zero or a multiple of 1/2. Particles with half-integer spins, 1/2, 3/2, 5/2, ..., are → fermions. Particles with integer spin (0, 1, 2, ...) are called → bosons.→ spin; → quantum; → number.