Write the formula of the product formed when the element A (atomic number 19) combines with the element B (atomic number 17). Draw its electronic dot structure. What is the nature of the bond formed?
Electronic configuration of A(21) : 2 8 8 1
Electronic Configuration of B(17): 2 8 7
A is an electropositive element so it tends to lose an electron to attain noble gas configuration on the other hand B is an electronegative element
which takes an electron and gains noble gas configuration.
Based on atomic number A is potassium and B is Chlorine.
Electron dot structure:
Ionic bond will be formed.