Draw a lewis structure for so2 in which all atoms obey the octet rule. Show formal charges. Do not consider ringed structures.

A common form of elemental phosphorus is the tetrahedral P₄ molecule, where all four phosphorus atoms are equivalent: 

Draw a Lewis structure for a linear P₄ molecule that satisfies the octet rule. Does this molecule have resonance structures?

A common form of elemental phosphorus is the tetrahedral P₄ molecule, where all four phosphorus atoms are equivalent: 

(b) How many P-P bonds are there in the molecule?

Draw the Lewis structure for each compound. c. H₃AsO₄

Draw the Lewis structure for each compound. b. H₃PO₃ (two OH bonds)

Draw a Lewis structure for SO₂ in which all atoms obey the octet rule. Show formal charges. Do not consider ringed structures.

In molecules, C, H, O, and N atoms usually make __, __, __, and __ bonds respectively.

Determine the number of valence electrons in HCN and then draw the corresponding Lewis structure.

Some chemists believe that satisfaction of the octet rule should be the top criterion for choosing the dominant Lewis structure of a molecule or ion. Other chemists believe that achieving the best formal charges should be the top criterion. Consider the dihydrogen phosphate ion, H₂PO₄^-, in which the H atoms are bonded to O atoms. (a) What is the predicted dominant Lewis structure if satisfying the octet rule is the top criterion?