Lewis Diagrams
How many lines or dots would show two atoms sharing 2 pairs of electrons?
What is 2 lines or 4 dots?
What is resonance?
What is when there are multiple arrangements of a compound?
When is formal charge used?
What is to help determine which resonance structure is the most valid
What does VSEPR stand for?
What is Valence Shell Electron Pair Repulsion?
What hybridization corresponds to 2 electron domains?
sp
How many bonds can nitrogen, oxygen, carbon and hydrogen form
What is N-3 O-2 C-4 H-1?
The minimum number of valid Lewis structures needed to represent a molecule with resonance
What is two?
What is the formula for formal charge?
What is Formal charge = valence electrons – (lone electrons + ½ bonded electrons)?
What is the electron geometry of a molecule with 2 bonding groups and 0 lone pairs?
What is Linear electron geometry?
What hybridization corresponds to 3 electron domains?
sp^2
How many valence electrons are involved in NCl3?
What is 26?
What is the term for when electrons are able to move to help stabilize the molecule?
What is delocalized?
Why is a formal charge of 0 preferred in a Lewis structure?
What is Lower (closer to zero) formal charges make the structure more stable ?
What is the molecular geometry of SO₂?
What is Bent?
What is the hybridization of carbon in ethene (C₂H₄)?
sp^2
Draw the Lewis Structure for PCl5
Put answers on a board
What are drawn on Lewis structures to indicate the structures are superimposed to make a hybrid?
What are double arrows?
Which formal charge pattern is more stable: one where the negative charge sits on the most electronegative atom, or the least?
What is more stable when the negative charge is on the more electronegative atom?
How does a lone pair affect bond angles?
What is Lone pairs repel more strongly than bonding pairs, reducing bond angles?
What is the hybridization of the central atom in SF₆?
sp^3d^2
Which elements can have more than 8 valence electrons?
What is phosphorus and sulfur?
In NO2 (1-), what is the average bond length?
What is 1.5?
Calculate the formal charge on nitrogen in NH₄⁺.
Wht is Nitrogen in NH₄⁺ has a formal charge of +1?
Predict the geometry of XeF₄.
What is Square planar?
Explain the difference in bonding (σ vs π) between sp, sp², and sp³ hybridized atoms.
sp → 1 σ bond + 2 π bonds possible (linear)
sp² → 1 π bond + 3 σ bonds (trigonal planar)
sp³ → all σ bonds (tetrahedral)