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Electron Chemistry

Electron Chemistry. Presenter Name. By PresenterMedia.com. Where are the Electrons. Electrons are located in orbitals outside of the nucleus The orbital is the area of most probable location 2 electrons are the maximum that are allowed per orbital. What is an Energy Level?.

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Electron Chemistry

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  1. Electron Chemistry Presenter Name By PresenterMedia.com

  2. Where are the Electrons • Electrons are located in orbitals outside of the nucleus • The orbital is the area of most probable location • 2 electrons are the maximum that are allowed per orbital

  3. What is an Energy Level? • This is the area occupied by all of the electrons in one particular area of the atom • Designated with the letters S, P, D, F • 7 Principle energy levels exist • The period number of the element designates the highest energy level where electrons are located • S is the lowest energy level and F is the highest • All elements have an S, but not all have an F • Electrons can jump from level to level when they gain energy

  4. What are Valence Electrons and What do they Do? • Electrons that are located in the farthest or outermost shell • Have the most energy because they are farthest away from the nuclear attraction • They can be exchanged or shared between atoms • If an atom gains these it has a negative charge • If it loses them it will have a positive charge

  5. How does the Ground State Differ From the Excited State? • Ground state is the lowest energy level state that an electron can be found in • This is the “normal” orbital area for an electron • Excited state is the level that an electron can jump to when it gains energy

  6. What happens to atoms when electrons “jump”? • Electrons gain energy and move from ground state to excited state • The jump is proportional to the amount of energy that is gained • Electrons do this and we cannot see it • When electrons return to the ground state, they release the energy and we see it as a color spectrum • Each element has a unique color spectrum that can be used to identify it based upon this catch and release of energy

  7. What Happens continued • Electrons can gain and lose energy in cycles • This is the idea behind neon lights and other colored light effects • At times we can see this as visible light • Think fireworks, or neon signs • This spectra that is produced is called a bright line spectra/spectrum

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