When O is the central atom of OF2 , the formal charge on the central O atom is .target 1 of 8 When F is the central atom of OF2 , the formal charge on the central F atom is .target 2 of 8 When N is the central atom of HCNO , the formal charge on the central N atom is Blank.target 3 of 8 When O is the central atom of HCNO , the formal charge on the central O atom is Blank.target 4 of 8 An O atom is Blank electronegative than N and Blank electronegative than F .target 5 of 8target 6 of 8 Since structures that place positive formal charges on the more electronegative atoms are Blank stable, for both OF2andHCNO the structure observed has the Blank electronegative atom as the central atom.