Question

Arrange the element of both 2nd and 3rd period in increasing order of their atomic size. ​

Answer 1

Answer:

Second Period

F, O,N,C,B,Be,Ne,Li

Third period

Cl, S, P, Si, Al, Mg, Ar, Na

Hope it helps u

Answer 2

Answer:

li,be,b,c,n,o,f,ne,na,mg,al,si,p,s,cl,ar