Question

1)Write 3 differences between oxidation number and valency
2)calculate oxidation numbers of following compounds
A) Mn in KMnO4
B)N in NH4
C)S in H2S
D)Hg in HgCl2
3)write drawbacks of Rutherford's atomic model?​

Answer 1

1. Oxidation- Oxidation state is the no. of electrons that a particular atom can lose, gain or share with other atom.

1.Valency - Valency is no. of electrons present in the outermost shell of the particular element.

2. Valency -Does not indicate the electric charge of an atom in a compound.

2.Oxidation -Indicate the electric charge of an atom in a compound.

3.Oxidation-Does not indicate the no. of bonds that a particular atom can have.

3.Valency -Determines the maximum no. of bonds that an atom can have.