limitations+of+the+model+of+atomic+theory


 * //Limitations of the model of atomic theory// **


 * Videos**

Modern atomic theory and why the past explanations are limited || media type="custom" key="23057964" A very clear explanation of quantum mechanics and modern atomic theory ||
 * media type="custom" key="23056994"


 * Common Misconceptions:**
 * Electrons have a definite path that they follow.
 * Electron orbit the nucleus like planets orbiting the sun.


 * Interesting facts:**
 * Quantum mechanics can even account for the movement of large objects like stars - it can give results that are virtually identical to those calculated using the laws of classical physics.
 * There are currently seven periods in the periodic table of chemical elements, culminating with atomic number 118. If further elements with higher atomic numbers than this are discovered, they will be placed in additional periods, laid out (as with the existing periods) to illustrate periodically recurring trends in the properties of the elements concerned. Any additional periods are expected to contain a larger number of elements than the seventh period, as they are calculated to have an additional so-called **g-block**, containing 18 elements with partially filled g-orbitals in each period. An **eight-period table** containing this block was suggested by Glenn T. Seaborg in 1969.


 * Resources:**
 * An worked examples on how to fill subshells:
 * media type="custom" key="23058242" ||
 * A great powerpoint presentation from the Royal Society of Chemistry about Electronic Structure.
 * A simulation on electronic configuration with worksheet/lesson plan.