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Energy levels and valence electrons

Energy levels and valence electrons. Electrons and Energy Levels. Electrons are found in energy levels. The energy level diagram for Fluorine. * In the first orbit, there are 2 electrons. * In the second orbit, there are 7 electrons. * In the third orbit, there are no electron.

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Energy levels and valence electrons

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  1. Energy levels and valence electrons

  2. Electrons and Energy Levels • Electrons are found in energy levels

  3. The energy level diagram for Fluorine * In the first orbit, there are 2 electrons. * In the second orbit, there are 7 electrons. * In the third orbit, there are no electron.

  4. Diagrams for Hydrogen and Carbon Hydrogen Carbon

  5. Valence electrons • The electrons in the outermost energy level of an atom. • The number of valence electrons vary from 1 to 8. • These are the electrons that participate in chemical bonding.

  6. Electron dot diagrams • Only show VALENCE electrons • Element symbol goes in the middle • One dot for each valence electron around the symbol

  7. Know the group know the valence electrons • Elements belonging in Group IA ( H, Li, Na, K ) 1 valence electron for the alkia metals • Elements belonging in Group IIA ( Be, Mg, Ca ) 2 valence electrons for alkaline earth metals • Elements belonging in Group IIIA (B, Al) 3 valence electrons for the boron family • Elements belonging in Group IVA (C, Si) 4 valence electrons for the Carbon group * Elements belonging in Group VA (eg - N, P) 5 valence electrons for elements belonging to Group VA). * Elements belonging in Group VIA (eg - O, S) 6 valence electrons for elements belonging to Group VIA). * Elements belonging in Group VIIA (eg - F, Cl) there are 7 valence electrons for elements belonging to Group VIIA). * Elements belonging in Group VIIIA (eg - He, Ne, Ar) there are 8 valence electrons for elements belonging to Group VIIIA).

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