Question

hi there! can anyone help me with this? :)

Arrange the following elements in order of increasing atomic size, and explain how you know the order: Ca, Rb, S, Si, Ge, F. Do not simply state the trends but rather explain why the trend exists

Answer 1

can you tell me in which row these elements come in periodic table
example
Ca-4 th row like that can you write for all

Answer 2

F-2nd row
S-3rd row
Si-3rd row
Ca-4th row
Ge-4th row
Rb-5th row

Answer 3

ok good:)

Answer 4

remember in the same row as we move from left to right the atomic radius decreases and as we go down the same group the atomic radius increases

Answer 5

now Flourine is present in the 2nd row and it is at the extreme right side hence otut of all its is the smallest right

Answer 6

now let us move to 3rd row where these elements are bigger than the 2nd row elements.
in 3 rd row we have two elements that is S and Si
as i told in the same row as u go from left to right atomic size decreses
and in 3 rd row as u go from left to right you get first Si and later u get sulfur therefore Si is bigger than the S
now u got this order F<S<Si
are u getting it ???

Answer 7

I think so

Answer 8

good:)
now in 4 hr row Ca comes first then the Ge hence Ca is bigger than the Ge
now u have order F<S<Si<Ge<Ca

Answer 9

and last one u write as Rb
F<S<Si<Ge<Ca <Rb

Answer 10

theoretical atomic size are as given below
F=0.42
S=0.88
Si=1.11
Ge=1.25
Ca=1.94
Rb=2.65
so our Predication and the method is right
did u get it or nooo:)

Answer 11

yes, thank you.....

Answer 12

you are welcome :)

Answer 13

@chmvijay Thanks

Answer 14

hey ur welcome:)