Each atomic sub-level has a set number of atomic or electron orbitals with each being able to hold up to 2 electrons. The main atomic sub-levels or subshells are s, p, d and f. From this distribution of electrons we can relate the chemical and physical properties of different elements.īefore you begin the electron configuration of an element it is important to remember the basic principles of quantum mechanics. Periodic Trend: Successive Ionization EnergiesĪn element’s electron configuration represents the location of its electrons within various shells and orbitals. The Electron Configuration: Quantum Numbers
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