1. How many valence electrons must be accounted for in the Lewis structure of chloroethane (C2H5Cl)?
2. Consider the four resonating structures of the phosphate ion:
Calculate the average formal charge on a single oxygen atom, such as the one shown in blue, as it appears on all resonance structures, A to D.
Express your answer numerically as a decimal or fraction.
Draw the Lewis structure for SeS3 and answer the
following questions.How many valence electrons are
present in this compound?How many bonding electrons are present in this compound?How many lone pair (non-bonding) electrons are present in this
compound?What, if anything, is wrong with
each of the following structural representations of
SeS3?(Only the lone pairs on the central atom are shown. Assume the
double bonded atoms have two lone pairs and the single-bonded atoms
have three lone pairs.)nothing is wrong too many...
In your lab notebook, draw the "correct" (or best)
Lewis structure for the molecule CS2.Now, answer the following questions about this molecule.What is the total number of valence electrons represented in the
Lewis structure of this molecule (or molecular ions)?How many lone-pairs of electrons are on the Catom?How many (σ) sigma bonds does this molecule have?How many (π) pi bonds does this molecule have?Does this molecule have resonance structures?YesNo
a) number of valence electrons, lewis structure, electron
geometry, molecular geometry, bond angles, polar or non polar :
ICl4^-
B) lewis structure, electron geometry, molecular geometry, polar
or non polar, sketch or molecule: IO3^1, SCN^-, BH3
valence electrons, lewis structure, electron geometry, molecular
geometry, bond angles, polar or non polar
IF4^+
ICl4^-
part b
lewis structure electron geometry, sketch of molecule, polar or
non polar
SCl3F3
CBr2F2
IO3^-
PO3^3-
BH3
TeF5^-
XeF2O2