Question

4. The group no.of element in the periodic table indicates *
1 p
valency with respect to hydrogen
a) O C
b) The atomicity
c)The no.of elements in the outer most shell
d)
Oxidation number​

Answer 1

(d) the oxidation number

Answer 2

Answer:

option c   from 13 to 18

no: of outermost element = group no: -10

Explanation:

eg    

     1, oxygen

   its group no: 16

      therefore  16-10=6

 its true that oxygen has 6 electrons in outer most shell

   

    2, aluminium

     its group no ; 13  

    therefore 13-10 =3

   al has 3 outermost electrons

 

  if it is clear please mark it as BRAINLIEST