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Electrons in Atoms

TermDefinition
Energy Levels Fixed energies around the nucleus
Quantum The amount of energy required to move an electron from one energy level to another
Atomic Orbital Describes the probability of finding an electron at various locations about the nucleus
Electron Configuration The arrangement of electrons in an atom
Aufbau Principle Electrons will occupy lower energy levels first before filling in higher energy elevels
Pauli Exclusion Principle A maximum of 2 electrons can occupy a single atomic orbital
Hund's Rule Elements with the same spin must occupy empty orbitals before occupying the same orbitals
Noble Gases Gases that have completely filled S and P orbitals, located in the last column of the periodic table
Valence Electrons The # of electrons in the outermost energy level
Isoelectronic Elements or ions that have the same electron configuration
Created by: MLevy44
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