|MadSci Network: Chemistry|
In the periodic table, showing electon configurations, the transitional elements and rare earths, show an inconsistant increase in the number of electrons in the orbitals. For example, AU-Gold has an electron configuration of 2-8-18-32-18-1 instead of 2-8-18-32-17-2. The 79th electron falls to the preceding transitional shell instead of remaining in the outter most represntative 6s orbital. HG- Mercury for example has both of its 6s electrons. There are several other elements. Some that give up two of their electrons to a preceding shell before eventually coming back to a "counting up" pattern. What causes these "certain elements" to temporarily jump out of step, in the increasing progression of the tables electron configurations?
Re: Why are there inconsistancies in electron configuration patterns?
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