Valence Electrons and Lewis Dot Structures

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Presentation transcript:

Valence Electrons and Lewis Dot Structures

Valence Electrons Electrons in the atom’s outermost orbitals Usually the orbitals with the highest energy level Look at Sulfur, it has 16 total electrons but only 6 are valence S: 1s22s22p63s23p4 S: [Ne] 3s23p4

Lewis Dot Structures/ Electron Dot Structures Consists of the element symbol, surrounded by dots The symbol represents the nucleus and the inner electrons The dots represent the valence electrons

Building an electron dot structure

Practice – draw electron dot structures after doing the noble gas notation Arsenic Cesium Lead Calcium Aluminum Iodine Oxygen Xenon

Answer the following in complete sentences What patterns do you see? Explain. Why does lead only have 4 valence electrons, when it has 28 electrons after the noble gas? Explain. What does the elements symbol represent in the electron dot structure?