PPT-Valence Shell Electron Repulsion Theory

VSERT Lesson Outline The Valence Shell Electron Repulsion Theory Lone and Bonding P air E lectron Repulsion Geometrical Shape Molecular S hape Molecular Bonding Kits. Shell be r din six w ite horses w en she comes Shell be r din six w ite horses w en she comes Shell be ridin six w ite horses ell be ridin six w ite horses Shell be ridin six w ite horses w en she comes Shell be w arin pin pajamas w en she comes etc Configuration . for Elements Above Atomic # 18. Electron Shells. Periods on the periodic table are similar because they have the same number of electron shells.. Within these shells there are layers called sublevels', a shell can have between 1 and 4 sublevels.. How they are formed. Valence Electrons. Valence Electrons of an atom are the electrons that are in the outermost s and p sub shells. (ONLY S AND P). To determine how many electrons are in your valence shell, look at where your element is on the periodic table.. Activity. Fold your periodic table so that the f and d blocks are looped.. Determine the number of valence electrons for each remaining group (column).. Find the pattern.. Valence Electrons. Valence electrons. Electrons:. ELECTRONS AVAILABLE FOR BONDING . Ga. . Standards. Students . know . how to use the periodic table to determine the number of electrons available for bonding. .. . Students know . how to draw Lewis dot structures.. Valence Electrons. Chemistry - Shearer - Standard 1. 1. Students . know how to use the periodic table to determine the number of electrons available for bonding. . Why are Valence Electrons Important?. What is a valence electron?. The electrons in the last shell or energy level. These determine how an atom behaves, reactivity, bonding. These are the only electrons we need to worry about from now on. Valence Electron Interaction and Charges. The Role of Electrons in Bonding. The sharing or transfer of . electrons . is what holds atoms together . in a . compound. Typically, only the electrons in the . Electron Shells. Periods on the periodic table are similar because they have the same number of electron shells.. Within these shells there are layers called sublevels', a shell can have between 1 and 4 sublevels.. The Effect . of Lone . Pairs, and . Predicting Molecular Geometries. VESPR Theory. Valence shell electron pair repulsion (VESPR) theory – electron pair (whether paired or unpaired), and even single electrons, repel one another through . Energy Levels. Electrons are arranged in different levels with in the electron cloud. There is a specific rule as to how many electrons can fit in each level of an electron.. In order to calculate how many electrons an energy level will have use the formula 2n^2 where n= energy level. Atomic number = Total number of electrons. The group number tells you the amount of valence electrons an element has.. The metals are on the left side of the periodic table. The nonmetals are on the right side of the periodic table. . EPMA, SEM-EDS. ). Warren Straszheim, PhD. EPMA, Ames Lab, 227 Wilhelm. SEM-EDS, MARL, 23 Town Engineering. wesaia@iastate.edu. 515-294-8187. With acknowledgements to John Donovan of the University of Oregon. :- . Asst. Prof. . Sachin. P . Patil. Chemistry Department. S T Co-Op Education Society’s, Science Senior College, . Shahada. .. Development of Periodic Table. Elements in the same group generally have similar chemical properties..