Question

1.
The evolution of various theories of valence and the
interpretation of the nature of chemical bonds have closely
been related to the developments in the understanding of
(a) structure of atom
(b) electronic configuration of elements
(c) periodic table
(d) All of the above​

Answer 1

Answer:

The evolution of various theories of valence and the interpretation of the nature of chemical bonds have closely been related to the developments in the understanding of the structure of atom, the electronic configuration of elements and the periodic table

Answer 2

Answer:

the evolution of various theories of valence and the

international of the nature of chemical bonds have closely

been related to the devolpment in the understanding of

(a) structure of atom

(b) electronic configuration of elements

(c) periodic table

(d) All of the above