Question

Metal a has electronic configuration 2,8,1 and metal b has electronic configuration 2,8,8,2 out of these which metal is more reaction? Write the reaction of this metal with dilute hcl

Answer 1

                           2,8,1= sodium(metal a)

                            2,8,8,2= calcium(metal b)    

 

out of these two metal a is more reactive,

    NA + HCL= NACL+H2  (UNBALANCED EQUATION)

   2NA+ 2HCL= 2NACL+H2 (BALANCED EQUATION)