Electronic theory of valance was given by.…
a) G.N Lewis
b) W.Kossel
c) a & b both
d) Robert
In chemical bond formation, atoms take part by ………. of electrons.
a) gaining
b) losing
c) sharing
d) all of these
Atoms make bond to attain the electronic configuration of …………
a) alkaline earth metals
b) alkali metals
c) halogens
d) noble gases
Explanation:Noble gases have complete their valence shell by fulfilling octet or duplet rule.So these are most stable.
When atoms have…….……electrons in their outermost shell they are stable.
a) 2
b) 8
c) 12
c) a & b both
The electron theory of valence can be named as
a) octet theory of valence
b) duplet theory of valence
c) a & b both
d) molecular orbital theory
Octet theory of valence means ………….
a) rule of eight
b) rule of two
c) rule of ten
d) rule of sixteen
Explanation:The octet rule is a chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
