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chemistry
unit 2
Term | Definition |
---|---|
Excited state | atom has most energy in this state |
ground state | lowest energy state |
Ionization energy | energy required to remove an energy |
electronegativity | ability of an atom in a compound to attract an electron |
electromagnetic spectrum | all frequencies and wavelengths on a chart |
Avogadro's rule | 6.02x10^23 |
Electron affinity | energy changes when an electron is acquired by a neutral atom |
mole | si base of a substance |
photon | unit of light |
orbital | region of finding electrons |
electron configuration | arrangement of electrons |
Pauli exclusion's principal | particles in the same class cannot be in the same energy state |
Hund's rule | occupied with one electron |