Molecular Structure and Physical Properties
Consider the following statements and determine which are trueand which are false.
true/false  SeF4 has a see-sawstructure.
true/false  KrF4 is a polar molecule.
true/false  NO3- has threeresonance Lewis structures.
true/false  Bond angles for IF6+are 90 °.
true/false  Selenium tetrafluoride (SeF4) is anon-polar molecule.
true/false  The formal oxidation state of anatom in a molecule (or molecular ion) can be calculated as:
(the number of valence electrons on a free atom)minus (half the number of electrons in bonds to that atom)minus (the number of unshared electrons assigned to theatom in the molecule)
