Question

cnstruct valency values for 1 to 20 elements ?
for class 10th​

Answer 1

Answer:

1=1 2==0 3=1 4=2 5=3 6=4 7=3 8=2 9=1 10=0 11=1

12=2 13=4 14=4 15 =3,5. 16=2 17=1 8=0 19=1 20=2

Explanation:

21012