Question

chemical formula of
potassium nitrate is KNO3.
Valency of K= ----, valency of
NO3 =​

Answer 1

Answer:

Explanation:Valency of (-NO3) is (-1), because last electronic configuration of N is 2s2 2p3 means outer orbit contains 5e- where as oxygen contains 6e- in last orbit but oxygen has more electronegative hence electron pull by oxygen.

Answer 2

Answer:

Both valencies (K and NO3) are 1..