In solid nacl, the equilibrium separation between neighboring na+ and cl- ions is 0.283 nm. calculate the coulombic energy between na+ and at this distance. give your answer in each of j, ev, and kj/mol units.

Explanation:

It is given that r = 0.283 nm. As 1 nm = .

Hence, 0.283 nm =

where,   e = C

            =

                         =

So,       1 J =

Hence,    U =

                   = 8.9 eV

                = kJ/mol

Therefore, U = kJ/mol

                     =

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.