Question

8) Draw the dot diagrams of the following. In each case draw the best diagram that appropriately minimizes formal charge. (12 pts- 3 each) a) SBrz b) XeF4 c) NO2 d) POCI3 (all atoms are bound to phosphorus)

Answer 1

the main objective in bond formation is to gain stability,an element is said to be stable if its outer orbital is fully filled, that is it should have 8 electrons in its outermost shell (except hydrogen which has 2)

some elements like xenon,chlorine,bromine violates the octet rule as they can have more than 8 electrons in outermost shell,only when they are central atoms
S has 6 outer electrons, represented by By has I deuter electrons, represented by sharing of electrons takes place structure. All elements have & electrons now lu outermost shell. b) Xefu Xe has f has 8 elections represented by Felections, represented by NO N has 5 elections, represented by & 10 has 6 elections, represented by since octet of nitrogen is complete, it cannot make bood and satisfy odel of oxygen, 3o one electron is added in Orygen, due to which formal charge appears of ony gen A dual structure

Date Page POCK

if positive charge is on compound,then central atom has positive charge on it,while negative charge is on side atoms