tCH 6.1 - Review I nner-shell shielding Effective nuclear...

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Unformatted text preview: Review I nner-shell shielding Effective nuclear charge Atomic size revisited I onization energy I E is the amount of energy required to remove an electron from an atom I onization energy increases as you go from left to right in the periodic table, it decreases as you go down the table Bonds Elements bond to one another by sharing or transferring electrons The electrons that can be used in bonding are in what we call the valence shell The valence shell is the outer most s and p orbitals How many electrons can full s and p orbitals hold? A) 2 B) 6 C) 8 D) 12 So a full valence shell has 8 electrons All noble gases have full valence shells Electron-Dot Structure We can note these valence shell electrons by using an electron-dot structure I n a dot structure, paired electrons are called nonbonding pairs because they generally do not form bonds I t is the single electrons that can be shared between atoms Let’s look at how to fill in electron-dot structures for some common elements Na K Cl Mg O S I n a dot structure you do not pair electrons until you add the 5 th electron and higher Compare dot structures to energy level diagrams K P C How many non bonding pairs of electrons are in the dot structure for Sulfur?...
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tCH 6.1 - Review I nner-shell shielding Effective nuclear...

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